99938951 has 8 divisors (see below), whose sum is σ = 114399264. Its totient is φ = 85524480.

The previous prime is 99938941. The next prime is 99938953. The reversal of 99938951 is 15983999.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99938951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99938893 and 99938902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99938953) 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, 6650 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (14299908).

Almost surely, 2^99938951 is an apocalyptic number.

99938951 is a deficient number, since it is larger than the sum of its proper divisors (14460313).

99938951 is a wasteful number, since it uses less digits than its factorization.

99938951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22921.

The product of its digits is 787320, while the sum is 53.

The square root of 99938951 is about 9996.9470839852. The cubic root of 99938951 is about 464.0644093480.

The spelling of 99938951 in words is "ninety-nine million, nine hundred thirty-eight thousand, nine hundred fifty-one".