897321384 has 48 divisors (see below), whose sum is σ = 2432664000. Its totient is φ = 298809504.

The previous prime is 897321349. The next prime is 897321409. The reversal of 897321384 is 483123798.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73767 + ... + 85065.

It is an arithmetic number, because the mean of its divisors is an integer number (50680500).

Almost surely, 2^897321384 is an apocalyptic number.

It is an amenable number.

897321384 is an abundant number, since it is smaller than the sum of its proper divisors (1535342616).

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

897321384 is a wasteful number, since it uses less digits than its factorization.

897321384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12414 (or 12407 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 897321384 is about 29955.3231329592. The cubic root of 897321384 is about 964.5305900660.

The spelling of 897321384 in words is "eight hundred ninety-seven million, three hundred twenty-one thousand, three hundred eighty-four".