89881699 has 2 divisors, whose sum is σ = 89881700. Its totient is φ = 89881698.

The previous prime is 89881667. The next prime is 89881751. The reversal of 89881699 is 99618898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89881699 - 2⁵ = 89881667 is a prime.

It is not a weakly prime, because it can be changed into another prime (89881619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44940849 + 44940850.

It is an arithmetic number, because the mean of its divisors is an integer number (44940850).

Almost surely, 2^89881699 is an apocalyptic number.

89881699 is a deficient number, since it is larger than the sum of its proper divisors (1).

89881699 is an equidigital number, since it uses as much as digits as its factorization.

89881699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 58.

The square root of 89881699 is about 9480.5959200886. The cubic root of 89881699 is about 447.9440349813.

The spelling of 89881699 in words is "eighty-nine million, eight hundred eighty-one thousand, six hundred ninety-nine".