890645872 has 40 divisors (see below), whose sum is σ = 1810554752. Its totient is φ = 423878400.

The previous prime is 890645857. The next prime is 890645923. The reversal of 890645872 is 278546098.

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, 15538 + ... + 44974.

Almost surely, 2^890645872 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 890645872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905277376).

890645872 is an abundant number, since it is smaller than the sum of its proper divisors (919908880).

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

890645872 is a wasteful number, since it uses less digits than its factorization.

890645872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29537 (or 29531 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 890645872 is about 29843.6906564855. The cubic root of 890645872 is about 962.1327986356.

The spelling of 890645872 in words is "eight hundred ninety million, six hundred forty-five thousand, eight hundred seventy-two".