1025689347 has 48 divisors (see below), whose sum is σ = 1584760320. Its totient is φ = 637870464.

The previous prime is 1025689303. The next prime is 1025689351. The reversal of 1025689347 is 7439865201.

1025689347 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025689347 - 2⁶ = 1025689283 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

1025689347 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (1025689367) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1556104 + ... + 1556762.

It is an arithmetic number, because the mean of its divisors is an integer number (33015840).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025689347 = 2051378694, but 3⋅1025689347 = 3077068041 is not.

Almost surely, 2^1025689347 is an apocalyptic number.

1025689347 is a deficient number, since it is larger than the sum of its proper divisors (559070973).

1025689347 is a wasteful number, since it uses less digits than its factorization.

1025689347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 861 counting only the distinct ones).

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

The square root of 1025689347 is about 32026.3851691070. The cubic root of 1025689347 is about 1008.4908176369.

The spelling of 1025689347 in words is "one billion, twenty-five million, six hundred eighty-nine thousand, three hundred forty-seven".