5991012 has 18 divisors (see below), whose sum is σ = 15144038. Its totient is φ = 1996992.

The previous prime is 5990977. The next prime is 5991031. The reversal of 5991012 is 2101995.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3481956 + 2509056 = 1866^2 + 1584^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83173 + ... + 83244.

Almost surely, 2^5991012 is an apocalyptic number.

It is an amenable number.

5991012 is an abundant number, since it is smaller than the sum of its proper divisors (9153026).

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

5991012 is a wasteful number, since it uses less digits than its factorization.

5991012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166427 (or 166422 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 5991012 is about 2447.6543873676. The cubic root of 5991012 is about 181.6212790502.

The spelling of 5991012 in words is "five million, nine hundred ninety-one thousand, twelve".