172404673 has 16 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 143888976.

The previous prime is 172404647. The next prime is 172404709. The reversal of 172404673 is 376404271.

172404673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172404673 - 2⁹ = 172404161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172404073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125436 + ... + 126802.

It is an arithmetic number, because the mean of its divisors is an integer number (12640320).

Almost surely, 2^172404673 is an apocalyptic number.

It is an amenable number.

172404673 is a deficient number, since it is larger than the sum of its proper divisors (29840447).

172404673 is a wasteful number, since it uses less digits than its factorization.

172404673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 172404673 is about 13130.2959981868. The cubic root of 172404673 is about 556.5655798293.

The spelling of 172404673 in words is "one hundred seventy-two million, four hundred four thousand, six hundred seventy-three".