1025791671 has 4 divisors (see below), whose sum is σ = 1367722232. Its totient is φ = 683861112.

The previous prime is 1025791631. The next prime is 1025791681. The reversal of 1025791671 is 1761975201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1025791671 - 2⁶ = 1025791607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025791601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170965276 + ... + 170965281.

It is an arithmetic number, because the mean of its divisors is an integer number (341930558).

Almost surely, 2^1025791671 is an apocalyptic number.

1025791671 is a deficient number, since it is larger than the sum of its proper divisors (341930561).

1025791671 is an equidigital number, since it uses as much as digits as its factorization.

1025791671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341930560.

The product of its (nonzero) digits is 26460, while the sum is 39.

The square root of 1025791671 is about 32027.9826245738. The cubic root of 1025791671 is about 1008.5243526065.

The spelling of 1025791671 in words is "one billion, twenty-five million, seven hundred ninety-one thousand, six hundred seventy-one".