897839404 has 48 divisors (see below), whose sum is σ = 1967486976. Its totient is φ = 348278400.

The previous prime is 897839389. The next prime is 897839413. The reversal of 897839404 is 404938798.

897839404 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 2×897839404² = 1612231190750150432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65509 + ... + 78019.

It is an arithmetic number, because the mean of its divisors is an integer number (40989312).

Almost surely, 2^897839404 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 897839404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983743488).

897839404 is an abundant number, since it is smaller than the sum of its proper divisors (1069647572).

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

897839404 is a wasteful number, since it uses less digits than its factorization.

897839404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12766 (or 12764 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 897839404 is about 29963.9684287646. The cubic root of 897839404 is about 964.7161608950.

The spelling of 897839404 in words is "eight hundred ninety-seven million, eight hundred thirty-nine thousand, four hundred four".