1025673489 has 8 divisors (see below), whose sum is σ = 1519516320. Its totient is φ = 683782308.

The previous prime is 1025673487. The next prime is 1025673491. The reversal of 1025673489 is 9843765201.

1025673489 is a `hidden beast` number, since 1 + 0 + 2 + 567 + 3 + 4 + 89 = 666.

1025673489 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1025673487) and next prime (1025673491).

It is not a de Polignac number, because 1025673489 - 2¹ = 1025673487 is a prime.

It is a super-2 number, since 2×1025673489² = 2104012212074866242, which contains 22 as substring.

1025673489 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (1025673487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18993927 + ... + 18993980.

It is an arithmetic number, because the mean of its divisors is an integer number (189939540).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025673489 = 2051346978, but 3⋅1025673489 = 3077020467 is not.

Almost surely, 2^1025673489 is an apocalyptic number.

It is an amenable number.

1025673489 is a deficient number, since it is larger than the sum of its proper divisors (493842831).

1025673489 is an equidigital number, since it uses as much as digits as its factorization.

1025673489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37987916 (or 37987910 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1025673489 is about 32026.1375910365. The cubic root of 1025673489 is about 1008.4856202446.

The spelling of 1025673489 in words is "one billion, twenty-five million, six hundred seventy-three thousand, four hundred eighty-nine".