172774441 has 12 divisors (see below), whose sum is σ = 203986128. Its totient is φ = 145879272.

The previous prime is 172774421. The next prime is 172774447. The reversal of 172774441 is 144477271.

It is not a de Polignac number, because 172774441 - 2⁵ = 172774409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172774441.

It is not an unprimeable number, because it can be changed into a prime (172774447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23031 + ... + 29596.

It is an arithmetic number, because the mean of its divisors is an integer number (16998844).

Almost surely, 2^172774441 is an apocalyptic number.

It is an amenable number.

172774441 is a deficient number, since it is larger than the sum of its proper divisors (31211687).

172774441 is an equidigital number, since it uses as much as digits as its factorization.

172774441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52708 (or 52701 counting only the distinct ones).

The product of its digits is 43904, while the sum is 37.

The square root of 172774441 is about 13144.3691746694. The cubic root of 172774441 is about 556.9631970200.

The spelling of 172774441 in words is "one hundred seventy-two million, seven hundred seventy-four thousand, four hundred forty-one".