172975434 has 16 divisors (see below), whose sum is σ = 347952672. Its totient is φ = 57324848.

The previous prime is 172975423. The next prime is 172975447. The reversal of 172975434 is 434579271.

172975434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82284 + ... + 84359.

It is an arithmetic number, because the mean of its divisors is an integer number (21747042).

Almost surely, 2^172975434 is an apocalyptic number.

172975434 is an abundant number, since it is smaller than the sum of its proper divisors (174977238).

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

172975434 is a wasteful number, since it uses less digits than its factorization.

172975434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166821.

The product of its digits is 211680, while the sum is 42.

The square root of 172975434 is about 13152.0125456145. The cubic root of 172975434 is about 557.1790899137.

The spelling of 172975434 in words is "one hundred seventy-two million, nine hundred seventy-five thousand, four hundred thirty-four".