89890616 has 8 divisors (see below), whose sum is σ = 168544920. Its totient is φ = 44945304.

The previous prime is 89890613. The next prime is 89890621. The reversal of 89890616 is 61609898.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89890613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5618156 + ... + 5618171.

It is an arithmetic number, because the mean of its divisors is an integer number (21068115).

Almost surely, 2^89890616 is an apocalyptic number.

It is an amenable number.

89890616 is a deficient number, since it is larger than the sum of its proper divisors (78654304).

89890616 is a wasteful number, since it uses less digits than its factorization.

89890616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11236333 (or 11236329 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 89890616 is about 9481.0661847706. The cubic root of 89890616 is about 447.9588477293.

The spelling of 89890616 in words is "eighty-nine million, eight hundred ninety thousand, six hundred sixteen".