88669891 has 2 divisors, whose sum is σ = 88669892. Its totient is φ = 88669890.

The previous prime is 88669879. The next prime is 88669927. The reversal of 88669891 is 19896688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88669891 - 2⁵ = 88669859 is a prime.

It is not a weakly prime, because it can be changed into another prime (88669391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44334945 + 44334946.

It is an arithmetic number, because the mean of its divisors is an integer number (44334946).

Almost surely, 2^88669891 is an apocalyptic number.

88669891 is a deficient number, since it is larger than the sum of its proper divisors (1).

88669891 is an equidigital number, since it uses as much as digits as its factorization.

88669891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 55.

The square root of 88669891 is about 9416.4691365713. The cubic root of 88669891 is about 445.9218209741.

The spelling of 88669891 in words is "eighty-eight million, six hundred sixty-nine thousand, eight hundred ninety-one".