99634951 has 4 divisors (see below), whose sum is σ = 107299192. Its totient is φ = 91970712.

The previous prime is 99634949. The next prime is 99634957. The reversal of 99634951 is 15943699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99634951 - 2¹ = 99634949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99634957) 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, 3832101 + ... + 3832126.

It is an arithmetic number, because the mean of its divisors is an integer number (26824798).

Almost surely, 2^99634951 is an apocalyptic number.

99634951 is a deficient number, since it is larger than the sum of its proper divisors (7664241).

99634951 is a wasteful number, since it uses less digits than its factorization.

99634951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664240.

The product of its digits is 262440, while the sum is 46.

The square root of 99634951 is about 9981.7308619297. The cubic root of 99634951 is about 463.5933922415.

The spelling of 99634951 in words is "ninety-nine million, six hundred thirty-four thousand, nine hundred fifty-one".