89967918 has 32 divisors (see below), whose sum is σ = 187608960. Its totient is φ = 28726880.

The previous prime is 89967877. The next prime is 89967919. The reversal of 89967918 is 81976998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89967919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20821 + ... + 24767.

It is an arithmetic number, because the mean of its divisors is an integer number (5862780).

Almost surely, 2^89967918 is an apocalyptic number.

89967918 is an abundant number, since it is smaller than the sum of its proper divisors (97641042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89967918 is a wasteful number, since it uses less digits than its factorization.

89967918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112.

The product of its digits is 1959552, while the sum is 57.

The square root of 89967918 is about 9485.1419599287. The cubic root of 89967918 is about 448.0872192802.

The spelling of 89967918 in words is "eighty-nine million, nine hundred sixty-seven thousand, nine hundred eighteen".