87633713 has 2 divisors, whose sum is σ = 87633714. Its totient is φ = 87633712.

The previous prime is 87633697. The next prime is 87633727. The reversal of 87633713 is 31733678.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84125584 + 3508129 = 9172^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 87633713 - 2⁴ = 87633697 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 (87633313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43816856 + 43816857.

It is an arithmetic number, because the mean of its divisors is an integer number (43816857).

Almost surely, 2^87633713 is an apocalyptic number.

It is an amenable number.

87633713 is a deficient number, since it is larger than the sum of its proper divisors (1).

87633713 is an equidigital number, since it uses as much as digits as its factorization.

87633713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 87633713 is about 9361.2879989882. The cubic root of 87633713 is about 444.1780273150.

The spelling of 87633713 in words is "eighty-seven million, six hundred thirty-three thousand, seven hundred thirteen".