99951284 has 24 divisors (see below), whose sum is σ = 188818560. Its totient is φ = 46153184.

The previous prime is 99951283. The next prime is 99951287. The reversal of 99951284 is 48215999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99951283) 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, 16064 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (7867440).

Almost surely, 2^99951284 is an apocalyptic number.

It is an amenable number.

99951284 is a deficient number, since it is larger than the sum of its proper divisors (88867276).

99951284 is a wasteful number, since it uses less digits than its factorization.

99951284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37519 (or 37517 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The square root of 99951284 is about 9997.5639032716. The cubic root of 99951284 is about 464.0834979045.

The spelling of 99951284 in words is "ninety-nine million, nine hundred fifty-one thousand, two hundred eighty-four".