97138867 has 16 divisors (see below), whose sum is σ = 122660352. Its totient is φ = 74954880.

The previous prime is 97138843. The next prime is 97138897. The reversal of 97138867 is 76883179.

It is not a de Polignac number, because 97138867 - 2⁷ = 97138739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97138867.

It is not an unprimeable number, because it can be changed into a prime (97138897) 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, 15009 + ... + 20482.

It is an arithmetic number, because the mean of its divisors is an integer number (7666272).

Almost surely, 2^97138867 is an apocalyptic number.

97138867 is a deficient number, since it is larger than the sum of its proper divisors (25521485).

97138867 is a wasteful number, since it uses less digits than its factorization.

97138867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35538.

The product of its digits is 508032, while the sum is 49.

The square root of 97138867 is about 9855.9051842030. The cubic root of 97138867 is about 459.6892466393.

The spelling of 97138867 in words is "ninety-seven million, one hundred thirty-eight thousand, eight hundred sixty-seven".