172704011 has 2 divisors, whose sum is σ = 172704012. Its totient is φ = 172704010.

The previous prime is 172703983. The next prime is 172704017. The reversal of 172704011 is 110407271.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172704011 is a prime.

It is not a weakly prime, because it can be changed into another prime (172704017) 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 as a sum of consecutive naturals, namely, 86352005 + 86352006.

It is an arithmetic number, because the mean of its divisors is an integer number (86352006).

Almost surely, 2^172704011 is an apocalyptic number.

172704011 is a deficient number, since it is larger than the sum of its proper divisors (1).

172704011 is an equidigital number, since it uses as much as digits as its factorization.

172704011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 172704011 is about 13141.6898076313. The cubic root of 172704011 is about 556.8875063312.

The spelling of 172704011 in words is "one hundred seventy-two million, seven hundred four thousand, eleven".