890000004 has 24 divisors (see below), whose sum is σ = 2110712128. Its totient is φ = 291803040.

The previous prime is 890000003. The next prime is 890000011. The reversal of 890000004 is 400000098.

It is not an unprimeable number, because it can be changed into a prime (890000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607192 + ... + 608655.

Almost surely, 2^890000004 is an apocalyptic number.

It is an amenable number.

890000004 is an abundant number, since it is smaller than the sum of its proper divisors (1220712124).

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

890000004 is a wasteful number, since it uses less digits than its factorization.

890000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215915 (or 1215913 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 890000004 is about 29832.8678473927. The cubic root of 890000004 is about 961.9001730488.

The spelling of 890000004 in words is "eight hundred ninety million, four", and thus it is an aban number.