172727433 has 24 divisors (see below), whose sum is σ = 257636808. Its totient is φ = 111428352.

The previous prime is 172727413. The next prime is 172727437. The reversal of 172727433 is 334727271.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81486729 + 91240704 = 9027^2 + 9552^2 .

It is not a de Polignac number, because 172727433 - 2⁶ = 172727369 is a prime.

It is a super-2 number, since 2×172727433² = 59669532221538978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172727437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64285 + ... + 66917.

It is an arithmetic number, because the mean of its divisors is an integer number (10734867).

Almost surely, 2^172727433 is an apocalyptic number.

It is an amenable number.

172727433 is a deficient number, since it is larger than the sum of its proper divisors (84909375).

172727433 is a wasteful number, since it uses less digits than its factorization.

172727433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873 (or 2870 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 172727433 is about 13142.5809109170. The cubic root of 172727433 is about 556.9126800942.

The spelling of 172727433 in words is "one hundred seventy-two million, seven hundred twenty-seven thousand, four hundred thirty-three".