172805464 has 32 divisors (see below), whose sum is σ = 356368320. Its totient is φ = 78057216.

The previous prime is 172805453. The next prime is 172805467. The reversal of 172805464 is 464508271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172805467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12789 + ... + 22564.

It is an arithmetic number, because the mean of its divisors is an integer number (11136510).

Almost surely, 2^172805464 is an apocalyptic number.

It is an amenable number.

172805464 is an abundant number, since it is smaller than the sum of its proper divisors (183562856).

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

172805464 is a wasteful number, since it uses less digits than its factorization.

172805464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35419 (or 35415 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 172805464 is about 13145.5492087626. The cubic root of 172805464 is about 556.9965307220.

The spelling of 172805464 in words is "one hundred seventy-two million, eight hundred five thousand, four hundred sixty-four".