5981990 has 32 divisors (see below), whose sum is σ = 12446784. Its totient is φ = 2027520.

The previous prime is 5981971. The next prime is 5981993. The reversal of 5981990 is 991895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5981993) 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, 6350 + ... + 7230.

It is an arithmetic number, because the mean of its divisors is an integer number (388962).

Almost surely, 2^5981990 is an apocalyptic number.

5981990 is an abundant number, since it is smaller than the sum of its proper divisors (6464794).

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

5981990 is a wasteful number, since it uses less digits than its factorization.

5981990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 5981990 is about 2445.8107040407. The cubic root of 5981990 is about 181.5300640548.

The spelling of 5981990 in words is "five million, nine hundred eighty-one thousand, nine hundred ninety".