99227680 has 48 divisors (see below), whose sum is σ = 235229400. Its totient is φ = 39555072.

The previous prime is 99227677. The next prime is 99227699. The reversal of 99227680 is 8672299.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 88284816 + 10942864 = 9396^2 + 3308^2 .

It is a super-2 number, since 2×99227680² = 19692264956364800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54952 + ... + 56728.

Almost surely, 2^99227680 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 99227680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117614700).

99227680 is an abundant number, since it is smaller than the sum of its proper divisors (136001720).

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

99227680 is a wasteful number, since it uses less digits than its factorization.

99227680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141 (or 2133 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 99227680 is about 9961.3091509098. The cubic root of 99227680 is about 462.9608632351.

The spelling of 99227680 in words is "ninety-nine million, two hundred twenty-seven thousand, six hundred eighty".