99951320 has 32 divisors (see below), whose sum is σ = 257018400. Its totient is φ = 34268928.

The previous prime is 99951311. The next prime is 99951323. The reversal of 99951320 is 2315999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99951323) 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, 178205 + ... + 178764.

It is an arithmetic number, because the mean of its divisors is an integer number (8031825).

Almost surely, 2^99951320 is an apocalyptic number.

It is an amenable number.

99951320 is an abundant number, since it is smaller than the sum of its proper divisors (157067080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99951320 is a wasteful number, since it uses less digits than its factorization.

99951320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356987 (or 356983 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 99951320 is about 9997.5657037101. The cubic root of 99951320 is about 464.0835536216.

The spelling of 99951320 in words is "ninety-nine million, nine hundred fifty-one thousand, three hundred twenty".