172806364 has 6 divisors (see below), whose sum is σ = 302411144. Its totient is φ = 86403180.

The previous prime is 172806353. The next prime is 172806367. The reversal of 172806364 is 463608271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172806367) 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 as a sum of consecutive naturals, namely, 21600792 + ... + 21600799.

Almost surely, 2^172806364 is an apocalyptic number.

It is an amenable number.

172806364 is a deficient number, since it is larger than the sum of its proper divisors (129604780).

172806364 is a wasteful number, since it uses less digits than its factorization.

172806364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43201595 (or 43201593 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 172806364 is about 13145.5834408367. The cubic root of 172806364 is about 556.9974976976.

The spelling of 172806364 in words is "one hundred seventy-two million, eight hundred six thousand, three hundred sixty-four".