897276431 has 16 divisors (see below), whose sum is σ = 955922688. Its totient is φ = 840806400.

The previous prime is 897276421. The next prime is 897276467. The reversal of 897276431 is 134672798.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897276431 is a prime.

It is a super-2 number, since 2×897276431² = 1610209987256195522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897276421) 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, 171551 + ... + 176703.

It is an arithmetic number, because the mean of its divisors is an integer number (59745168).

Almost surely, 2^897276431 is an apocalyptic number.

897276431 is a deficient number, since it is larger than the sum of its proper divisors (58646257).

897276431 is a wasteful number, since it uses less digits than its factorization.

897276431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362.

The product of its digits is 508032, while the sum is 47.

The square root of 897276431 is about 29954.5727894757. The cubic root of 897276431 is about 964.5144831399.

It can be divided in two parts, 8972764 and 31, that multiplied together give a square (278155684 = 16678²).

The spelling of 897276431 in words is "eight hundred ninety-seven million, two hundred seventy-six thousand, four hundred thirty-one".