897513253 has 18 divisors (see below), whose sum is σ = 1125305286. Its totient is φ = 709522128.

The previous prime is 897513193. The next prime is 897513301. The reversal of 897513253 is 352315798.

It can be written as a sum of positive squares in only one way, i.e., 621355329 + 276157924 = 24927^2 + 16618^2 .

It is not a de Polignac number, because 897513253 - 2¹⁷ = 897382181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897513053) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 755526 + ... + 756712.

Almost surely, 2^897513253 is an apocalyptic number.

It is an amenable number.

897513253 is a deficient number, since it is larger than the sum of its proper divisors (227792033).

897513253 is an equidigital number, since it uses as much as digits as its factorization.

897513253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 1207 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 897513253 is about 29958.5255478303. The cubic root of 897513253 is about 964.5993318176.

The spelling of 897513253 in words is "eight hundred ninety-seven million, five hundred thirteen thousand, two hundred fifty-three".