172580747 has 2 divisors, whose sum is σ = 172580748. Its totient is φ = 172580746.

The previous prime is 172580741. The next prime is 172580761. The reversal of 172580747 is 747085271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172580747 - 2⁴ = 172580731 is a prime.

It is a super-2 number, since 2×172580747² = 59568228470156018, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172580741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86290373 + 86290374.

It is an arithmetic number, because the mean of its divisors is an integer number (86290374).

Almost surely, 2^172580747 is an apocalyptic number.

172580747 is a deficient number, since it is larger than the sum of its proper divisors (1).

172580747 is an equidigital number, since it uses as much as digits as its factorization.

172580747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 172580747 is about 13136.9991626703. Note that the first 3 decimals coincide. The cubic root of 172580747 is about 556.7549857279.

The spelling of 172580747 in words is "one hundred seventy-two million, five hundred eighty thousand, seven hundred forty-seven".