97864605 has 28 divisors (see below), whose sum is σ = 176082300. Its totient is φ = 52192512.

The previous prime is 97864579. The next prime is 97864607. The reversal of 97864605 is 50646879.

It can be written as a sum of positive squares in 2 ways, for example, as 30935844 + 66928761 = 5562^2 + 8181^2 .

It is not a de Polignac number, because 97864605 - 2⁹ = 97864093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97864607) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9780 + ... + 17069.

Almost surely, 2^97864605 is an apocalyptic number.

It is an amenable number.

97864605 is a deficient number, since it is larger than the sum of its proper divisors (78217695).

97864605 is an equidigital number, since it uses as much as digits as its factorization.

97864605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872 (or 26857 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 97864605 is about 9892.6540928105. The cubic root of 97864605 is about 460.8312082135.

The spelling of 97864605 in words is "ninety-seven million, eight hundred sixty-four thousand, six hundred five".