172432047 has 8 divisors (see below), whose sum is σ = 230872320. Its totient is φ = 114473240.

The previous prime is 172432027. The next prime is 172432061. The reversal of 172432047 is 740234271.

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

It is a cyclic number.

It is not a de Polignac number, because 172432047 - 2⁶ = 172431983 is a prime.

It is a super-2 number, since 2×172432047² = 59465621665220418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172432027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119529 + ... + 120962.

It is an arithmetic number, because the mean of its divisors is an integer number (28859040).

Almost surely, 2^172432047 is an apocalyptic number.

172432047 is a deficient number, since it is larger than the sum of its proper divisors (58440273).

172432047 is a wasteful number, since it uses less digits than its factorization.

172432047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240733.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 172432047 is about 13131.3383552477. The cubic root of 172432047 is about 556.5950349859.

The spelling of 172432047 in words is "one hundred seventy-two million, four hundred thirty-two thousand, forty-seven".