99665214 has 32 divisors (see below), whose sum is σ = 217900800. Its totient is φ = 30139200.

The previous prime is 99665191. The next prime is 99665261. The reversal of 99665214 is 41256699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38274 + ... + 40794.

It is an arithmetic number, because the mean of its divisors is an integer number (6809400).

Almost surely, 2^99665214 is an apocalyptic number.

99665214 is an abundant number, since it is smaller than the sum of its proper divisors (118235586).

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

99665214 is a wasteful number, since it uses less digits than its factorization.

99665214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136.

The product of its digits is 116640, while the sum is 42.

The square root of 99665214 is about 9983.2466662905. The cubic root of 99665214 is about 463.6403245896.

The spelling of 99665214 in words is "ninety-nine million, six hundred sixty-five thousand, two hundred fourteen".