897722274 has 8 divisors (see below), whose sum is σ = 1795444560. Its totient is φ = 299240756.

The previous prime is 897722257. The next prime is 897722327. The reversal of 897722274 is 472227798.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

897722274 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74810184 + ... + 74810195.

It is an arithmetic number, because the mean of its divisors is an integer number (224430570).

Almost surely, 2^897722274 is an apocalyptic number.

897722274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

897722274 is a wasteful number, since it uses less digits than its factorization.

897722274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149620384.

The product of its digits is 790272, while the sum is 48.

The square root of 897722274 is about 29962.0138508746. The cubic root of 897722274 is about 964.6742075428.

The spelling of 897722274 in words is "eight hundred ninety-seven million, seven hundred twenty-two thousand, two hundred seventy-four".