99367128 has 64 divisors (see below), whose sum is σ = 315456000. Its totient is φ = 28390176.

The previous prime is 99367123. The next prime is 99367139. The reversal of 99367128 is 82176399.

It is a super-2 number, since 2×99367128² = 19747652253936768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99367123) 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, 31348 + ... + 34371.

It is an arithmetic number, because the mean of its divisors is an integer number (4929000).

Almost surely, 2^99367128 is an apocalyptic number.

It is an amenable number.

99367128 is an abundant number, since it is smaller than the sum of its proper divisors (216088872).

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

99367128 is a wasteful number, since it uses less digits than its factorization.

99367128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65741 (or 65731 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 99367128 is about 9968.3061750731. The cubic root of 99367128 is about 463.1776332189.

It can be divided in two parts, 993 and 67128, that added together give a square (68121 = 261²).

The spelling of 99367128 in words is "ninety-nine million, three hundred sixty-seven thousand, one hundred twenty-eight".