5031990 has 32 divisors (see below), whose sum is σ = 13419360. Its totient is φ = 1341792.

The previous prime is 5031967. The next prime is 5031991. The reversal of 5031990 is 991305.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5031991) 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, 9049 + ... + 9588.

It is an arithmetic number, because the mean of its divisors is an integer number (419355).

Almost surely, 2^5031990 is an apocalyptic number.

5031990 is an abundant number, since it is smaller than the sum of its proper divisors (8387370).

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

5031990 is a wasteful number, since it uses less digits than its factorization.

5031990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18653 (or 18647 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 5031990 is about 2243.2097539018. The cubic root of 5031990 is about 171.3615005479.

The spelling of 5031990 in words is "five million, thirty-one thousand, nine hundred ninety".