172946407 has 8 divisors (see below), whose sum is σ = 183425760. Its totient is φ = 162713760.

The previous prime is 172946381. The next prime is 172946413. The reversal of 172946407 is 704649271.

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 172946407 - 2¹⁵ = 172913639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172946407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172946447) 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, 60232 + ... + 63037.

It is an arithmetic number, because the mean of its divisors is an integer number (22928220).

Almost surely, 2^172946407 is an apocalyptic number.

172946407 is a deficient number, since it is larger than the sum of its proper divisors (10479353).

172946407 is a wasteful number, since it uses less digits than its factorization.

172946407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123353.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 172946407 is about 13150.9089799907. The cubic root of 172946407 is about 557.1479214373.

The spelling of 172946407 in words is "one hundred seventy-two million, nine hundred forty-six thousand, four hundred seven".