97638393 has 8 divisors (see below), whose sum is σ = 131135328. Its totient is φ = 64616864.

The previous prime is 97638379. The next prime is 97638407. The reversal of 97638393 is 39383679.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97638379) and next prime (97638407).

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 97638393 - 2⁴ = 97638377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97638323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118371 + ... + 119192.

It is an arithmetic number, because the mean of its divisors is an integer number (16391916).

Almost surely, 2^97638393 is an apocalyptic number.

It is an amenable number.

97638393 is a deficient number, since it is larger than the sum of its proper divisors (33496935).

97638393 is a wasteful number, since it uses less digits than its factorization.

97638393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237703.

The product of its digits is 734832, while the sum is 48.

The square root of 97638393 is about 9881.2141460450. The cubic root of 97638393 is about 460.4758670322.

The spelling of 97638393 in words is "ninety-seven million, six hundred thirty-eight thousand, three hundred ninety-three".