97915569 has 8 divisors (see below), whose sum is σ = 137425440. Its totient is φ = 61841376.

The previous prime is 97915549. The next prime is 97915627. The reversal of 97915569 is 96551979.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97915569 - 2⁹ = 97915057 is a prime.

It is a super-2 number, since 2×97915569² = 19174917305187522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97915549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858852 + ... + 858965.

It is an arithmetic number, because the mean of its divisors is an integer number (17178180).

Almost surely, 2^97915569 is an apocalyptic number.

It is an amenable number.

97915569 is a deficient number, since it is larger than the sum of its proper divisors (39509871).

97915569 is a wasteful number, since it uses less digits than its factorization.

97915569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717839.

The product of its digits is 765450, while the sum is 51.

The square root of 97915569 is about 9895.2296082506. The cubic root of 97915569 is about 460.9111885293.

The spelling of 97915569 in words is "ninety-seven million, nine hundred fifteen thousand, five hundred sixty-nine".