47687634 has 24 divisors (see below), whose sum is σ = 103761372. Its totient is φ = 15828480.

The previous prime is 47687617. The next prime is 47687659. The reversal of 47687634 is 43678674.

47687634 is a `hidden beast` number, since 4 + 7 + 6 + 8 + 7 + 634 = 666.

47687634 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 2 ways, for example, as 47568609 + 119025 = 6897^2 + 345^2 .

It is a super-2 number, since 2×47687634² = 4548220873035912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47687634.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1159 + ... + 9834.

Almost surely, 2^47687634 is an apocalyptic number.

47687634 is an abundant number, since it is smaller than the sum of its proper divisors (56073738).

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

47687634 is a wasteful number, since it uses less digits than its factorization.

47687634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11242 (or 11239 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 47687634 is about 6905.6233607112. The cubic root of 47687634 is about 362.6340596510.

The spelling of 47687634 in words is "forty-seven million, six hundred eighty-seven thousand, six hundred thirty-four".