989870004 has 48 divisors (see below), whose sum is σ = 2586572800. Its totient is φ = 327354048.

The previous prime is 989870003. The next prime is 989870009. The reversal of 989870004 is 400078989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989870003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22369 + ... + 49800.

Almost surely, 2^989870004 is an apocalyptic number.

It is an amenable number.

989870004 is an abundant number, since it is smaller than the sum of its proper divisors (1596702796).

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

989870004 is a wasteful number, since it uses less digits than its factorization.

989870004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72309 (or 72301 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 989870004 is about 31462.1996052406. The cubic root of 989870004 is about 996.6118681941.

The spelling of 989870004 in words is "nine hundred eighty-nine million, eight hundred seventy thousand, four".