88655681 has 2 divisors, whose sum is σ = 88655682. Its totient is φ = 88655680.

The previous prime is 88655669. The next prime is 88655687. The reversal of 88655681 is 18655688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88642225 + 13456 = 9415^2 + 116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88655681 is a prime.

It is a super-2 number, since 2×88655681² = 15719659547147522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88655687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44327840 + 44327841.

It is an arithmetic number, because the mean of its divisors is an integer number (44327841).

Almost surely, 2^88655681 is an apocalyptic number.

It is an amenable number.

88655681 is a deficient number, since it is larger than the sum of its proper divisors (1).

88655681 is an equidigital number, since it uses as much as digits as its factorization.

88655681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 47.

The square root of 88655681 is about 9415.7145772374. The cubic root of 88655681 is about 445.8979989547.

The spelling of 88655681 in words is "eighty-eight million, six hundred fifty-five thousand, six hundred eighty-one".