97971402 has 16 divisors (see below), whose sum is σ = 198627840. Its totient is φ = 32209632.

The previous prime is 97971397. The next prime is 97971403. The reversal of 97971402 is 20417979.

It is not an unprimeable number, because it can be changed into a prime (97971403) 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, 111402 + ... + 112277.

It is an arithmetic number, because the mean of its divisors is an integer number (12414240).

Almost surely, 2^97971402 is an apocalyptic number.

97971402 is an abundant number, since it is smaller than the sum of its proper divisors (100656438).

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

97971402 is a wasteful number, since it uses less digits than its factorization.

97971402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223757.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 97971402 is about 9898.0504140967. The cubic root of 97971402 is about 460.9987781567.

The spelling of 97971402 in words is "ninety-seven million, nine hundred seventy-one thousand, four hundred two".