172347412 has 12 divisors (see below), whose sum is σ = 301723380. Its totient is φ = 86140736.

The previous prime is 172347401. The next prime is 172347431. The reversal of 172347412 is 214743271.

It can be written as a sum of positive squares in 2 ways, for example, as 164762896 + 7584516 = 12836^2 + 2754^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6414 + ... + 19642.

It is an arithmetic number, because the mean of its divisors is an integer number (25143615).

Almost surely, 2^172347412 is an apocalyptic number.

It is an amenable number.

172347412 is a deficient number, since it is larger than the sum of its proper divisors (129375968).

172347412 is a wasteful number, since it uses less digits than its factorization.

172347412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16490 (or 16488 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 172347412 is about 13128.1153255142. The cubic root of 172347412 is about 556.5039553771.

The spelling of 172347412 in words is "one hundred seventy-two million, three hundred forty-seven thousand, four hundred twelve".