897423384 has 128 divisors (see below), whose sum is σ = 2750630400. Its totient is φ = 240092160.

The previous prime is 897423379. The next prime is 897423391. The reversal of 897423384 is 483324798.

897423384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×897423384² = 1610737460300022912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73252 + ... + 84620.

It is an arithmetic number, because the mean of its divisors is an integer number (21489300).

Almost surely, 2^897423384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897423384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1375315200).

897423384 is an abundant number, since it is smaller than the sum of its proper divisors (1853207016).

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

897423384 is a wasteful number, since it uses less digits than its factorization.

897423384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425 (or 11421 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 897423384 is about 29957.0256200445. The cubic root of 897423384 is about 964.5671352751.

The spelling of 897423384 in words is "eight hundred ninety-seven million, four hundred twenty-three thousand, three hundred eighty-four".