172680470 has 32 divisors (see below), whose sum is σ = 315977760. Its totient is φ = 67936000.

The previous prime is 172680451. The next prime is 172680499. The reversal of 172680470 is 74086271.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 172680470.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 223004 + ... + 223776.

It is an arithmetic number, because the mean of its divisors is an integer number (9874305).

Almost surely, 2^172680470 is an apocalyptic number.

172680470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172680470 is a deficient number, since it is larger than the sum of its proper divisors (143297290).

172680470 is a wasteful number, since it uses less digits than its factorization.

172680470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 172680470 is about 13140.7941160342. The cubic root of 172680470 is about 556.8622023744.

The spelling of 172680470 in words is "one hundred seventy-two million, six hundred eighty thousand, four hundred seventy".