99994272 has 96 divisors (see below), whose sum is σ = 317665152. Its totient is φ = 26886144.

The previous prime is 99994267. The next prime is 99994273. The reversal of 99994272 is 27249999.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (99994273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7048 + ... + 15800.

It is an arithmetic number, because the mean of its divisors is an integer number (3309012).

Almost surely, 2^99994272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99994272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158832576).

99994272 is an abundant number, since it is smaller than the sum of its proper divisors (217670880).

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

99994272 is a wasteful number, since it uses less digits than its factorization.

99994272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790 (or 8782 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 99994272 is about 9999.7135958986. The cubic root of 99994272 is about 464.1500208518.

The spelling of 99994272 in words is "ninety-nine million, nine hundred ninety-four thousand, two hundred seventy-two".