172006679 has 12 divisors (see below), whose sum is σ = 187924896. Its totient is φ = 157352832.

The previous prime is 172006669. The next prime is 172006691. The reversal of 172006679 is 976600271.

It is not a de Polignac number, because 172006679 - 2⁸ = 172006423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172006619) 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, 14594 + ... + 23600.

It is an arithmetic number, because the mean of its divisors is an integer number (15660408).

Almost surely, 2^172006679 is an apocalyptic number.

172006679 is a deficient number, since it is larger than the sum of its proper divisors (15918217).

172006679 is a wasteful number, since it uses less digits than its factorization.

172006679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146 (or 9133 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 172006679 is about 13115.1316806199. The cubic root of 172006679 is about 556.1369749907.

The spelling of 172006679 in words is "one hundred seventy-two million, six thousand, six hundred seventy-nine".