88666637 has 2 divisors, whose sum is σ = 88666638. Its totient is φ = 88666636.

The previous prime is 88666609. The next prime is 88666649. The reversal of 88666637 is 73666688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48038761 + 40627876 = 6931^2 + 6374^2 .

It is a cyclic number.

It is not a de Polignac number, because 88666637 - 2⁶ = 88666573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88666607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44333318 + 44333319.

It is an arithmetic number, because the mean of its divisors is an integer number (44333319).

Almost surely, 2^88666637 is an apocalyptic number.

It is an amenable number.

88666637 is a deficient number, since it is larger than the sum of its proper divisors (1).

88666637 is an equidigital number, since it uses as much as digits as its factorization.

88666637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 88666637 is about 9416.2963526006. The cubic root of 88666637 is about 445.9163661073.

The spelling of 88666637 in words is "eighty-eight million, six hundred sixty-six thousand, six hundred thirty-seven".