172739713 has 4 divisors (see below), whose sum is σ = 172772308. Its totient is φ = 172707120.

The previous prime is 172739687. The next prime is 172739731. The reversal of 172739713 is 317937271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107081104 + 65658609 = 10348^2 + 8103^2 .

It is a cyclic number.

It is not a de Polignac number, because 172739713 - 2¹⁷ = 172608641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172739753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6306 + ... + 19627.

It is an arithmetic number, because the mean of its divisors is an integer number (43193077).

Almost surely, 2^172739713 is an apocalyptic number.

It is an amenable number.

172739713 is a deficient number, since it is larger than the sum of its proper divisors (32595).

172739713 is an equidigital number, since it uses as much as digits as its factorization.

172739713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32594.

The product of its digits is 55566, while the sum is 40.

The square root of 172739713 is about 13143.0480863459. The cubic root of 172739713 is about 556.9258776227.

The spelling of 172739713 in words is "one hundred seventy-two million, seven hundred thirty-nine thousand, seven hundred thirteen".