3661790931 has 12 divisors (see below), whose sum is σ = 5293329808. Its totient is φ = 2439312624.

The previous prime is 3661790911. The next prime is 3661790933. The reversal of 3661790931 is 1390971663.

It is not a de Polignac number, because 3661790931 - 2¹⁰ = 3661789907 is a prime.

It is a super-2 number, since 2×3661790931² = 26817425644707693522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661790933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144400 + ... + 167853.

Almost surely, 2^3661790931 is an apocalyptic number.

3661790931 is a deficient number, since it is larger than the sum of its proper divisors (1631538877).

3661790931 is a wasteful number, since it uses less digits than its factorization.

3661790931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313562 (or 313559 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 3661790931 is about 60512.7336268987. The cubic root of 3661790931 is about 1541.3378674477.

The spelling of 3661790931 in words is "three billion, six hundred sixty-one million, seven hundred ninety thousand, nine hundred thirty-one".