97811795 has 16 divisors (see below), whose sum is σ = 125128800. Its totient is φ = 73142784.

The previous prime is 97811737. The next prime is 97811797. The reversal of 97811795 is 59711879.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97811795 is a prime.

It is a super-2 number, since 2×97811795² = 19134294482244050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97811797) 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, 8804 + ... + 16526.

It is an arithmetic number, because the mean of its divisors is an integer number (7820550).

Almost surely, 2^97811795 is an apocalyptic number.

97811795 is a deficient number, since it is larger than the sum of its proper divisors (27317005).

97811795 is a wasteful number, since it uses less digits than its factorization.

97811795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894.

The product of its digits is 158760, while the sum is 47.

The square root of 97811795 is about 9889.9845803722. The cubic root of 97811795 is about 460.7483015796.

The spelling of 97811795 in words is "ninety-seven million, eight hundred eleven thousand, seven hundred ninety-five".