97172270 has 32 divisors (see below), whose sum is σ = 198283680. Its totient is φ = 33989760.

The previous prime is 97172269. The next prime is 97172347. The reversal of 97172270 is 7227179.

It is a self number, because there is not a number n which added to its sum of digits gives 97172270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17201 + ... + 22140.

It is an arithmetic number, because the mean of its divisors is an integer number (6196365).

Almost surely, 2^97172270 is an apocalyptic number.

97172270 is an abundant number, since it is smaller than the sum of its proper divisors (101111410).

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

97172270 is a wasteful number, since it uses less digits than its factorization.

97172270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39380.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 97172270 is about 9857.5996063951. The cubic root of 97172270 is about 459.7419314904.

The spelling of 97172270 in words is "ninety-seven million, one hundred seventy-two thousand, two hundred seventy".