172914673 has 8 divisors (see below), whose sum is σ = 176373288. Its totient is φ = 169463424.

The previous prime is 172914661. The next prime is 172914719. The reversal of 172914673 is 376419271.

It can be written as a sum of positive squares in 4 ways, for example, as 17363889 + 155550784 = 4167^2 + 12472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172914673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172914473) 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 7 ways as a sum of consecutive naturals, for example, 85765 + ... + 87757.

It is an arithmetic number, because the mean of its divisors is an integer number (22046661).

Almost surely, 2^172914673 is an apocalyptic number.

It is an amenable number.

172914673 is a deficient number, since it is larger than the sum of its proper divisors (3458615).

172914673 is a wasteful number, since it uses less digits than its factorization.

172914673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683.

The product of its digits is 63504, while the sum is 40.

The square root of 172914673 is about 13149.7023920696. The cubic root of 172914673 is about 557.1138422603.

The spelling of 172914673 in words is "one hundred seventy-two million, nine hundred fourteen thousand, six hundred seventy-three".