88801891 has 2 divisors, whose sum is σ = 88801892. Its totient is φ = 88801890.

The previous prime is 88801861. The next prime is 88801939. The reversal of 88801891 is 19810888.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88801891 - 2⁹ = 88801379 is a prime.

It is not a weakly prime, because it can be changed into another prime (88801861) 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, 44400945 + 44400946.

It is an arithmetic number, because the mean of its divisors is an integer number (44400946).

Almost surely, 2^88801891 is an apocalyptic number.

88801891 is a deficient number, since it is larger than the sum of its proper divisors (1).

88801891 is an equidigital number, since it uses as much as digits as its factorization.

88801891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 88801891 is about 9423.4755265772. The cubic root of 88801891 is about 446.1429877285.

The spelling of 88801891 in words is "eighty-eight million, eight hundred one thousand, eight hundred ninety-one".