897918380 has 12 divisors (see below), whose sum is σ = 1885628640. Its totient is φ = 359167344.

The previous prime is 897918377. The next prime is 897918431. The reversal of 897918380 is 83819798.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22447940 + ... + 22447979.

It is an arithmetic number, because the mean of its divisors is an integer number (157135720).

Almost surely, 2^897918380 is an apocalyptic number.

It is an amenable number.

897918380 is an abundant number, since it is smaller than the sum of its proper divisors (987710260).

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

897918380 is a wasteful number, since it uses less digits than its factorization.

897918380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44895928 (or 44895926 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 897918380 is about 29965.2862492585. The cubic root of 897918380 is about 964.7444462763.

The spelling of 897918380 in words is "eight hundred ninety-seven million, nine hundred eighteen thousand, three hundred eighty".