47677637 has 12 divisors (see below), whose sum is σ = 55574316. Its totient is φ = 40783680.

The previous prime is 47677627. The next prime is 47677649. The reversal of 47677637 is 73677674.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23804641 + 23872996 = 4879^2 + 4886^2 .

It is not a de Polignac number, because 47677637 - 2¹⁶ = 47612101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47677591 and 47677600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47677627) 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, 46187 + ... + 47207.

It is an arithmetic number, because the mean of its divisors is an integer number (4631193).

Almost surely, 2^47677637 is an apocalyptic number.

It is an amenable number.

47677637 is a deficient number, since it is larger than the sum of its proper divisors (7896679).

47677637 is a wasteful number, since it uses less digits than its factorization.

47677637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1981 counting only the distinct ones).

The product of its digits is 1037232, while the sum is 47.

The square root of 47677637 is about 6904.8994923894. The cubic root of 47677637 is about 362.6087176092.

The spelling of 47677637 in words is "forty-seven million, six hundred seventy-seven thousand, six hundred thirty-seven".