915896961 has 24 divisors (see below), whose sum is σ = 1577696640. Its totient is φ = 500613696.

The previous prime is 915896941. The next prime is 915896963. The reversal of 915896961 is 169698519.

It is not a de Polignac number, because 915896961 - 2⁵ = 915896929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 915896898 and 915896907.

It is not an unprimeable number, because it can be changed into a prime (915896963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314596 + ... + 317493.

It is an arithmetic number, because the mean of its divisors is an integer number (65737360).

Almost surely, 2^915896961 is an apocalyptic number.

It is an amenable number.

915896961 is a deficient number, since it is larger than the sum of its proper divisors (661799679).

915896961 is a wasteful number, since it uses less digits than its factorization.

915896961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632125 (or 632122 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 54.

The square root of 915896961 is about 30263.7896007754. The cubic root of 915896961 is about 971.1408127979.

The spelling of 915896961 in words is "nine hundred fifteen million, eight hundred ninety-six thousand, nine hundred sixty-one".