99669658 has 16 divisors (see below), whose sum is σ = 165395520. Its totient is φ = 44665600.

The previous prime is 99669653. The next prime is 99669659. The reversal of 99669658 is 85696699.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99669653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30343 + ... + 33466.

It is an arithmetic number, because the mean of its divisors is an integer number (10337220).

Almost surely, 2^99669658 is an apocalyptic number.

99669658 is a deficient number, since it is larger than the sum of its proper divisors (65725862).

99669658 is a wasteful number, since it uses less digits than its factorization.

99669658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63893.

The product of its digits is 6298560, while the sum is 58.

The square root of 99669658 is about 9983.4692366932. The cubic root of 99669658 is about 463.6472156163.

The spelling of 99669658 in words is "ninety-nine million, six hundred sixty-nine thousand, six hundred fifty-eight".