172072006 has 16 divisors (see below), whose sum is σ = 261241344. Its totient is φ = 84995784.

The previous prime is 172072001. The next prime is 172072027. The reversal of 172072006 is 600270271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172072001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120211 + ... + 121633.

It is an arithmetic number, because the mean of its divisors is an integer number (16327584).

Almost surely, 2^172072006 is an apocalyptic number.

172072006 is a deficient number, since it is larger than the sum of its proper divisors (89169338).

172072006 is a wasteful number, since it uses less digits than its factorization.

172072006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 172072006 is about 13117.6219643653. The cubic root of 172072006 is about 556.2073717953.

The spelling of 172072006 in words is "one hundred seventy-two million, seventy-two thousand, six".