97688393 has 16 divisors (see below), whose sum is σ = 108506112. Its totient is φ = 87210000.

The previous prime is 97688351. The next prime is 97688401. The reversal of 97688393 is 39388679.

It is a cyclic number.

It is not a de Polignac number, because 97688393 - 2¹⁸ = 97426249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97688093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170798 + ... + 171368.

It is an arithmetic number, because the mean of its divisors is an integer number (6781632).

Almost surely, 2^97688393 is an apocalyptic number.

It is an amenable number.

97688393 is a deficient number, since it is larger than the sum of its proper divisors (10817719).

97688393 is a wasteful number, since it uses less digits than its factorization.

97688393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836.

The product of its digits is 1959552, while the sum is 53.

The square root of 97688393 is about 9883.7438756779. The cubic root of 97688393 is about 460.5544558729.

The spelling of 97688393 in words is "ninety-seven million, six hundred eighty-eight thousand, three hundred ninety-three".