172506464 has 24 divisors (see below), whose sum is σ = 365747760. Its totient is φ = 79618176.

The previous prime is 172506461. The next prime is 172506479. The reversal of 172506464 is 464605271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172506461) 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 3 ways as a sum of consecutive naturals, for example, 206924 + ... + 207755.

It is an arithmetic number, because the mean of its divisors is an integer number (15239490).

Almost surely, 2^172506464 is an apocalyptic number.

It is an amenable number.

172506464 is an abundant number, since it is smaller than the sum of its proper divisors (193241296).

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

172506464 is a wasteful number, since it uses less digits than its factorization.

172506464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414702 (or 414694 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 172506464 is about 13134.1716145328. The cubic root of 172506464 is about 556.6750939159.

The spelling of 172506464 in words is "one hundred seventy-two million, five hundred six thousand, four hundred sixty-four".