897438720 has 88 divisors (see below), whose sum is σ = 2870450784. Its totient is φ = 239312896.

The previous prime is 897438719. The next prime is 897438733. The reversal of 897438720 is 27834798.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 897438720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13854 + ... + 44573.

Almost surely, 2^897438720 is an apocalyptic number.

897438720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

897438720 is an abundant number, since it is smaller than the sum of its proper divisors (1973012064).

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

897438720 is a wasteful number, since it uses less digits than its factorization.

897438720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58455 (or 58437 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 897438720 is about 29957.2815856179. The cubic root of 897438720 is about 964.5726297152.

The spelling of 897438720 in words is "eight hundred ninety-seven million, four hundred thirty-eight thousand, seven hundred twenty".