97928897 has 8 divisors (see below), whose sum is σ = 107376192. Its totient is φ = 88572400.

The previous prime is 97928881. The next prime is 97928921. The reversal of 97928897 is 79882979.

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

It is a cyclic number.

It is not a de Polignac number, because 97928897 - 2⁴ = 97928881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97928827) 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, 20429 + ... + 24762.

It is an arithmetic number, because the mean of its divisors is an integer number (13422024).

Almost surely, 2^97928897 is an apocalyptic number.

It is an amenable number.

97928897 is a deficient number, since it is larger than the sum of its proper divisors (9447295).

97928897 is a wasteful number, since it uses less digits than its factorization.

97928897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45399.

The product of its digits is 4572288, while the sum is 59.

The square root of 97928897 is about 9895.9030411580. The cubic root of 97928897 is about 460.9321002382.

The spelling of 97928897 in words is "ninety-seven million, nine hundred twenty-eight thousand, eight hundred ninety-seven".