897269522 has 18 divisors (see below), whose sum is σ = 1372927143. Its totient is φ = 439802284.

The previous prime is 897269501. The next prime is 897269531. The reversal of 897269522 is 225962798.

It can be written as a sum of positive squares in only one way, i.e., 448634761 + 448634761 = 21181^2 + 21181^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=21181.

It is a super-2 number, since 2×897269522² = 1610185190220216968, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (1088640) is a multiple of the sum of its prime divisors (420).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2499179 + ... + 2499537.

Almost surely, 2^897269522 is an apocalyptic number.

897269522 is a deficient number, since it is larger than the sum of its proper divisors (475657621).

897269522 is an frugal number, since it uses more digits than its factorization.

897269522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 420 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 897269522 is about 29954.4574646245. The cubic root of 897269522 is about 964.5120075566.

Multiplying 897269522 by its sum of digits (50), we get a square (44863476100 = 211810²).

The spelling of 897269522 in words is "eight hundred ninety-seven million, two hundred sixty-nine thousand, five hundred twenty-two".