97121802 has 32 divisors (see below), whose sum is σ = 197749440. Its totient is φ = 31795200.

The previous prime is 97121797. The next prime is 97121807. The reversal of 97121802 is 20812179.

It is an interprime number because it is at equal distance from previous prime (97121797) and next prime (97121807).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 97121802.

It is not an unprimeable number, because it can be changed into a prime (97121807) 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, 83658 + ... + 84810.

It is an arithmetic number, because the mean of its divisors is an integer number (6179670).

Almost surely, 2^97121802 is an apocalyptic number.

97121802 is an abundant number, since it is smaller than the sum of its proper divisors (100627638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97121802 is a wasteful number, since it uses less digits than its factorization.

97121802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 97121802 is about 9855.0394215345. The cubic root of 97121802 is about 459.6623262224.

The spelling of 97121802 in words is "ninety-seven million, one hundred twenty-one thousand, eight hundred two".