99664958 has 8 divisors (see below), whose sum is σ = 149619960. Its totient is φ = 49791640.

The previous prime is 99664951. The next prime is 99664987. The reversal of 99664958 is 85946699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99664951) 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, 17273 + ... + 22308.

It is an arithmetic number, because the mean of its divisors is an integer number (18702495).

Almost surely, 2^99664958 is an apocalyptic number.

99664958 is a deficient number, since it is larger than the sum of its proper divisors (49955002).

99664958 is a wasteful number, since it uses less digits than its factorization.

99664958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40842.

The product of its digits is 4199040, while the sum is 56.

The square root of 99664958 is about 9983.2338448020. The cubic root of 99664958 is about 463.6399276205.

The spelling of 99664958 in words is "ninety-nine million, six hundred sixty-four thousand, nine hundred fifty-eight".