99190664 has 8 divisors (see below), whose sum is σ = 185982510. Its totient is φ = 49595328.

The previous prime is 99190661. The next prime is 99190667. The reversal of 99190664 is 46609199.

It is an interprime number because it is at equal distance from previous prime (99190661) and next prime (99190667).

It can be written as a sum of positive squares in only one way, i.e., 99161764 + 28900 = 9958^2 + 170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (99190661) 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 as a sum of consecutive naturals, namely, 6199409 + ... + 6199424.

Almost surely, 2^99190664 is an apocalyptic number.

It is an amenable number.

99190664 is a deficient number, since it is larger than the sum of its proper divisors (86791846).

99190664 is a wasteful number, since it uses less digits than its factorization.

99190664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398839 (or 12398835 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 99190664 is about 9959.4509888849. The cubic root of 99190664 is about 462.9032882699.

The spelling of 99190664 in words is "ninety-nine million, one hundred ninety thousand, six hundred sixty-four".