897319284 has 12 divisors (see below), whose sum is σ = 2093745024. Its totient is φ = 299106424.

The previous prime is 897319261. The next prime is 897319331. The reversal of 897319284 is 482913798.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 37388292 + ... + 37388315.

It is an arithmetic number, because the mean of its divisors is an integer number (174478752).

Almost surely, 2^897319284 is an apocalyptic number.

It is an amenable number.

897319284 is an abundant number, since it is smaller than the sum of its proper divisors (1196425740).

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

897319284 is a wasteful number, since it uses less digits than its factorization.

897319284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74776614 (or 74776612 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 897319284 is about 29955.2880807379. The cubic root of 897319284 is about 964.5298376356.

The spelling of 897319284 in words is "eight hundred ninety-seven million, three hundred nineteen thousand, two hundred eighty-four".