99667958 has 16 divisors (see below), whose sum is σ = 169476720. Its totient is φ = 43579296.

The previous prime is 99667951. The next prime is 99667963. The reversal of 99667958 is 85976699.

It is a junction number, because it is equal to n+sod(n) for n = 99667897 and 99667906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99667951) 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, 100385 + ... + 101372.

It is an arithmetic number, because the mean of its divisors is an integer number (10592295).

Almost surely, 2^99667958 is an apocalyptic number.

99667958 is a deficient number, since it is larger than the sum of its proper divisors (69808762).

99667958 is a wasteful number, since it uses less digits than its factorization.

99667958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201791.

The product of its digits is 7348320, while the sum is 59.

The square root of 99667958 is about 9983.3840955860. The cubic root of 99667958 is about 463.6445795592.

The spelling of 99667958 in words is "ninety-nine million, six hundred sixty-seven thousand, nine hundred fifty-eight".