172488407 has 16 divisors (see below), whose sum is σ = 214492992. Its totient is φ = 135060480.

The previous prime is 172488401. The next prime is 172488427. The reversal of 172488407 is 704884271.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 172488407 - 2⁴ = 172488391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172488401) 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, 944 + ... + 18597.

It is an arithmetic number, because the mean of its divisors is an integer number (13405812).

Almost surely, 2^172488407 is an apocalyptic number.

172488407 is a deficient number, since it is larger than the sum of its proper divisors (42004585).

172488407 is a wasteful number, since it uses less digits than its factorization.

172488407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19658.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 172488407 is about 13133.4841911810. The cubic root of 172488407 is about 556.6556700391.

The spelling of 172488407 in words is "one hundred seventy-two million, four hundred eighty-eight thousand, four hundred seven".