47677631 has 6 divisors (see below), whose sum is σ = 50319432. Its totient is φ = 45167940.

The previous prime is 47677627. The next prime is 47677649. The reversal of 47677631 is 13677674.

It is not a de Polignac number, because 47677631 - 2² = 47677627 is a prime.

It is a super-2 number, since 2×47677631² = 4546312995544322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47677601) 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, 65675 + ... + 66396.

It is an arithmetic number, because the mean of its divisors is an integer number (8386572).

Almost surely, 2^47677631 is an apocalyptic number.

47677631 is a deficient number, since it is larger than the sum of its proper divisors (2641801).

47677631 is a wasteful number, since it uses less digits than its factorization.

47677631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132109 (or 132090 counting only the distinct ones).

The product of its digits is 148176, while the sum is 41.

The square root of 47677631 is about 6904.8990579153. The cubic root of 47677631 is about 362.6087023983.

The spelling of 47677631 in words is "forty-seven million, six hundred seventy-seven thousand, six hundred thirty-one".