87888733 has 2 divisors, whose sum is σ = 87888734. Its totient is φ = 87888732.

The previous prime is 87888721. The next prime is 87888761. The reversal of 87888733 is 33788878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77475204 + 10413529 = 8802^2 + 3227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87888733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87889733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43944366 + 43944367.

It is an arithmetic number, because the mean of its divisors is an integer number (43944367).

Almost surely, 2^87888733 is an apocalyptic number.

It is an amenable number.

87888733 is a deficient number, since it is larger than the sum of its proper divisors (1).

87888733 is an equidigital number, since it uses as much as digits as its factorization.

87888733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 52.

The square root of 87888733 is about 9374.8990927903. The cubic root of 87888733 is about 444.6084726895.

The spelling of 87888733 in words is "eighty-seven million, eight hundred eighty-eight thousand, seven hundred thirty-three".