172716003 has 16 divisors (see below), whose sum is σ = 256296960. Its totient is φ = 114954408.

The previous prime is 172715999. The next prime is 172716013. The reversal of 172716003 is 300617271.

It is not a de Polignac number, because 172716003 - 2² = 172715999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (172716013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12526 + ... + 22412.

It is an arithmetic number, because the mean of its divisors is an integer number (16018560).

Almost surely, 2^172716003 is an apocalyptic number.

172716003 is a deficient number, since it is larger than the sum of its proper divisors (83580957).

172716003 is an equidigital number, since it uses as much as digits as its factorization.

172716003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543 (or 10537 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 172716003 is about 13142.1460576270. The cubic root of 172716003 is about 556.9003955134.

The spelling of 172716003 in words is "one hundred seventy-two million, seven hundred sixteen thousand, three".