99211472 has 20 divisors (see below), whose sum is σ = 196911876. Its totient is φ = 48395520.

The previous prime is 99211451. The next prime is 99211481. The reversal of 99211472 is 27411299.

It can be written as a sum of positive squares in 2 ways, for example, as 20286016 + 78925456 = 4504^2 + 8884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74963 + ... + 76274.

Almost surely, 2^99211472 is an apocalyptic number.

It is an amenable number.

99211472 is a deficient number, since it is larger than the sum of its proper divisors (97700404).

99211472 is a wasteful number, since it uses less digits than its factorization.

99211472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151286 (or 151280 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 99211472 is about 9960.4955700005. The cubic root of 99211472 is about 462.9356549523.

The spelling of 99211472 in words is "ninety-nine million, two hundred eleven thousand, four hundred seventy-two".