3005631 has 6 divisors (see below), whose sum is σ = 4341480. Its totient is φ = 2003748.

The previous prime is 3005627. The next prime is 3005633. The reversal of 3005631 is 1365003.

3005631 is a `hidden beast` number, since 30 + 0 + 5 + 631 = 666.

It is not a de Polignac number, because 3005631 - 2² = 3005627 is a prime.

It is a super-2 number, since 2×3005631² = 18067635416322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166971 + ... + 166988.

It is an arithmetic number, because the mean of its divisors is an integer number (723580).

Almost surely, 2^3005631 is an apocalyptic number.

3005631 is a deficient number, since it is larger than the sum of its proper divisors (1335849).

3005631 is a wasteful number, since it uses less digits than its factorization.

3005631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333965 (or 333962 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 3005631 is about 1733.6755751870. The cubic root of 3005631 is about 144.3151373795.

The spelling of 3005631 in words is "three million, five thousand, six hundred thirty-one".