897031860 has 96 divisors (see below), whose sum is σ = 2665135872. Its totient is φ = 224655360.

The previous prime is 897031859. The next prime is 897031871. The reversal of 897031860 is 68130798.

It is a super-3 number, since 3×897031860³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869545 + ... + 870575.

It is an arithmetic number, because the mean of its divisors is an integer number (27761832).

Almost surely, 2^897031860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897031860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332567936).

897031860 is an abundant number, since it is smaller than the sum of its proper divisors (1768104012).

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

897031860 is a wasteful number, since it uses less digits than its factorization.

897031860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 897031860 is about 29950.4901462397. The cubic root of 897031860 is about 964.4268424756.

The spelling of 897031860 in words is "eight hundred ninety-seven million, thirty-one thousand, eight hundred sixty".