99223539 has 8 divisors (see below), whose sum is σ = 132699072. Its totient is φ = 65948520.

The previous prime is 99223517. The next prime is 99223547. The reversal of 99223539 is 93532299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99223539 - 2⁵ = 99223507 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 99223539.

It is not an unprimeable number, because it can be changed into a prime (99223559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48969 + ... + 50954.

It is an arithmetic number, because the mean of its divisors is an integer number (16587384).

Almost surely, 2^99223539 is an apocalyptic number.

99223539 is a deficient number, since it is larger than the sum of its proper divisors (33475533).

99223539 is a wasteful number, since it uses less digits than its factorization.

99223539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100257.

The product of its digits is 131220, while the sum is 42.

The square root of 99223539 is about 9961.1012945357. The cubic root of 99223539 is about 462.9544230039.

It can be divided in two parts, 992 and 23539, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 99223539 in words is "ninety-nine million, two hundred twenty-three thousand, five hundred thirty-nine".