172457470 has 8 divisors (see below), whose sum is σ = 310423464. Its totient is φ = 68982984.

The previous prime is 172457459. The next prime is 172457479. The reversal of 172457470 is 74754271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172457479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8622864 + ... + 8622883.

It is an arithmetic number, because the mean of its divisors is an integer number (38802933).

Almost surely, 2^172457470 is an apocalyptic number.

172457470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172457470 is a deficient number, since it is larger than the sum of its proper divisors (137965994).

172457470 is a wasteful number, since it uses less digits than its factorization.

172457470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17245754.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 172457470 is about 13132.3063473253. The cubic root of 172457470 is about 556.6223880223.

The spelling of 172457470 in words is "one hundred seventy-two million, four hundred fifty-seven thousand, four hundred seventy".