99889065 has 32 divisors (see below), whose sum is σ = 180604800. Its totient is φ = 52367040.

The previous prime is 99889051. The next prime is 99889087. The reversal of 99889065 is 56098899.

It is not a de Polignac number, because 99889065 - 2⁵ = 99889033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1695 + ... + 14235.

It is an arithmetic number, because the mean of its divisors is an integer number (5643900).

Almost surely, 2^99889065 is an apocalyptic number.

It is an amenable number.

99889065 is a deficient number, since it is larger than the sum of its proper divisors (80715735).

99889065 is a wasteful number, since it uses less digits than its factorization.

99889065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12614 (or 12608 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 99889065 is about 9994.4517108244. The cubic root of 99889065 is about 463.9871816341.

The spelling of 99889065 in words is "ninety-nine million, eight hundred eighty-nine thousand, sixty-five".