172470670 has 48 divisors (see below), whose sum is σ = 325592784. Its totient is φ = 65769600.

The previous prime is 172470647. The next prime is 172470673. The reversal of 172470670 is 76074271.

172470670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172470670² = 59492264020497800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172470673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1258842 + ... + 1258978.

It is an arithmetic number, because the mean of its divisors is an integer number (6783183).

Almost surely, 2^172470670 is an apocalyptic number.

172470670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172470670 is a deficient number, since it is larger than the sum of its proper divisors (153122114).

172470670 is a wasteful number, since it uses less digits than its factorization.

172470670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 172470670 is about 13132.8089150798. The cubic root of 172470670 is about 556.6365890658.

The spelling of 172470670 in words is "one hundred seventy-two million, four hundred seventy thousand, six hundred seventy".