172970 has 24 divisors (see below), whose sum is σ = 363204. Its totient is φ = 59136.

The previous prime is 172969. The next prime is 172973. The reversal of 172970 is 79271.

172970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 170569 + 2401 = 413^2 + 49^2 .

It is not an unprimeable number, because it can be changed into a prime (172973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314 + ... + 666.

2¹⁷²⁹⁷⁰ is an apocalyptic number.

172970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172970 is an abundant number, since it is smaller than the sum of its proper divisors (190234).

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

172970 is a wasteful number, since it uses less digits than its factorization.

172970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 172970 is about 415.8966217704. The cubic root of 172970 is about 55.7173255284.

The spelling of 172970 in words is "one hundred seventy-two thousand, nine hundred seventy".