99139766 has 32 divisors (see below), whose sum is σ = 166503168. Its totient is φ = 43892640.

The previous prime is 99139757. The next prime is 99139769. The reversal of 99139766 is 66793199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99139769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151496 + ... + 152148.

It is an arithmetic number, because the mean of its divisors is an integer number (5203224).

Almost surely, 2^99139766 is an apocalyptic number.

99139766 is a deficient number, since it is larger than the sum of its proper divisors (67363402).

99139766 is a wasteful number, since it uses less digits than its factorization.

99139766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its digits is 551124, while the sum is 50.

The square root of 99139766 is about 9956.8953996715. The cubic root of 99139766 is about 462.8240977435.

The spelling of 99139766 in words is "ninety-nine million, one hundred thirty-nine thousand, seven hundred sixty-six".