99665627 has 4 divisors (see below), whose sum is σ = 99700536. Its totient is φ = 99630720.

The previous prime is 99665617. The next prime is 99665669. The reversal of 99665627 is 72656699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99665627 - 2¹⁸ = 99403483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99665617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12749 + ... + 19022.

It is an arithmetic number, because the mean of its divisors is an integer number (24925134).

Almost surely, 2^99665627 is an apocalyptic number.

99665627 is a deficient number, since it is larger than the sum of its proper divisors (34909).

99665627 is a wasteful number, since it uses less digits than its factorization.

99665627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34908.

The product of its digits is 1224720, while the sum is 50.

The square root of 99665627 is about 9983.2673509227. The cubic root of 99665627 is about 463.6409650109.

The spelling of 99665627 in words is "ninety-nine million, six hundred sixty-five thousand, six hundred twenty-seven".