99272445 has 32 divisors (see below), whose sum is σ = 162922752. Its totient is φ = 51597312.

The previous prime is 99272377. The next prime is 99272477. The reversal of 99272445 is 54427299.

It is not a de Polignac number, because 99272445 - 2⁷ = 99272317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99272397 and 99272406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153112 + ... + 153758.

It is an arithmetic number, because the mean of its divisors is an integer number (5091336).

Almost surely, 2^99272445 is an apocalyptic number.

It is an amenable number.

99272445 is a deficient number, since it is larger than the sum of its proper divisors (63650307).

99272445 is a wasteful number, since it uses less digits than its factorization.

99272445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901.

The product of its digits is 181440, while the sum is 42.

The square root of 99272445 is about 9963.5558411643. Note that the first 3 decimals coincide. The cubic root of 99272445 is about 463.0304719280.

It can be divided in two parts, 992 and 72445, that added together give a palindrome (73437).

The spelling of 99272445 in words is "ninety-nine million, two hundred seventy-two thousand, four hundred forty-five".