172712706 has 16 divisors (see below), whose sum is σ = 351280800. Its totient is φ = 56595008.

The previous prime is 172712699. The next prime is 172712711. The reversal of 172712706 is 607217271.

It is a happy number.

It is an unprimeable number.

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, 243591 + ... + 244298.

It is an arithmetic number, because the mean of its divisors is an integer number (21955050).

Almost surely, 2^172712706 is an apocalyptic number.

172712706 is an abundant number, since it is smaller than the sum of its proper divisors (178568094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172712706 is a wasteful number, since it uses less digits than its factorization.

172712706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487953.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 172712706 is about 13142.0206208939. The cubic root of 172712706 is about 556.8968519076.

Adding to 172712706 its reverse (607217271), we get a palindrome (779929977).

The spelling of 172712706 in words is "one hundred seventy-two million, seven hundred twelve thousand, seven hundred six".