47987633 has 2 divisors, whose sum is σ = 47987634. Its totient is φ = 47987632.

The previous prime is 47987629. The next prime is 47987647. The reversal of 47987633 is 33678974.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39790864 + 8196769 = 6308^2 + 2863^2 .

It is a cyclic number.

It is not a de Polignac number, because 47987633 - 2² = 47987629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47987603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23993816 + 23993817.

It is an arithmetic number, because the mean of its divisors is an integer number (23993817).

Almost surely, 2^47987633 is an apocalyptic number.

It is an amenable number.

47987633 is a deficient number, since it is larger than the sum of its proper divisors (1).

47987633 is an equidigital number, since it uses as much as digits as its factorization.

47987633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 47.

The square root of 47987633 is about 6927.3106614328. The cubic root of 47987633 is about 363.3929043156.

The spelling of 47987633 in words is "forty-seven million, nine hundred eighty-seven thousand, six hundred thirty-three".