897085131 has 16 divisors (see below), whose sum is σ = 1210160640. Its totient is φ = 591055200.

The previous prime is 897085129. The next prime is 897085139. The reversal of 897085131 is 131580798.

It is not a de Polignac number, because 897085131 - 2¹ = 897085129 is a prime.

It is a super-2 number, since 2×897085131² = 1609523464522574322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (897085139) 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, 185166 + ... + 189948.

It is an arithmetic number, because the mean of its divisors is an integer number (75635040).

Almost surely, 2^897085131 is an apocalyptic number.

897085131 is a deficient number, since it is larger than the sum of its proper divisors (313075509).

897085131 is a wasteful number, since it uses less digits than its factorization.

897085131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 897085131 is about 29951.3794507031. The cubic root of 897085131 is about 964.4459332005.

The spelling of 897085131 in words is "eight hundred ninety-seven million, eighty-five thousand, one hundred thirty-one".