88861687 has 2 divisors, whose sum is σ = 88861688. Its totient is φ = 88861686.

The previous prime is 88861657. The next prime is 88861691. The reversal of 88861687 is 78616888.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88861687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88861657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44430843 + 44430844.

It is an arithmetic number, because the mean of its divisors is an integer number (44430844).

Almost surely, 2^88861687 is an apocalyptic number.

88861687 is a deficient number, since it is larger than the sum of its proper divisors (1).

88861687 is an equidigital number, since it uses as much as digits as its factorization.

88861687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 52.

The square root of 88861687 is about 9426.6477074303. The cubic root of 88861687 is about 446.2431041417.

The spelling of 88861687 in words is "eighty-eight million, eight hundred sixty-one thousand, six hundred eighty-seven".