897120881 has 8 divisors (see below), whose sum is σ = 907223328. Its totient is φ = 887068000.

The previous prime is 897120823. The next prime is 897120943. The reversal of 897120881 is 188021798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897120881 - 2⁶ = 897120817 is a prime.

It is a super-2 number, since 2×897120881² = 1609651750252432322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897120781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24626 + ... + 48996.

It is an arithmetic number, because the mean of its divisors is an integer number (113402916).

Almost surely, 2^897120881 is an apocalyptic number.

It is an amenable number.

897120881 is a deficient number, since it is larger than the sum of its proper divisors (10102447).

897120881 is a wasteful number, since it uses less digits than its factorization.

897120881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24783.

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 897120881 is about 29951.9762453164. The cubic root of 897120881 is about 964.4587445020.

The spelling of 897120881 in words is "eight hundred ninety-seven million, one hundred twenty thousand, eight hundred eighty-one".