99215266 has 4 divisors (see below), whose sum is σ = 148822902. Its totient is φ = 49607632.

The previous prime is 99215257. The next prime is 99215269. The reversal of 99215266 is 66251299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66896041 + 32319225 = 8179^2 + 5685^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99215269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24803815 + ... + 24803818.

Almost surely, 2^99215266 is an apocalyptic number.

99215266 is a deficient number, since it is larger than the sum of its proper divisors (49607636).

99215266 is a wasteful number, since it uses less digits than its factorization.

99215266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49607635.

The product of its digits is 58320, while the sum is 40.

The square root of 99215266 is about 9960.6860205510. The cubic root of 99215266 is about 462.9415560020.

The spelling of 99215266 in words is "ninety-nine million, two hundred fifteen thousand, two hundred sixty-six".