172696697 has 2 divisors, whose sum is σ = 172696698. Its totient is φ = 172696696.

The previous prime is 172696687. The next prime is 172696781. The reversal of 172696697 is 796696271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172685881 + 10816 = 13141^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 172696697 - 2¹⁶ = 172631161 is a prime.

It is not a weakly prime, because it can be changed into another prime (172696687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86348348 + 86348349.

It is an arithmetic number, because the mean of its divisors is an integer number (86348349).

Almost surely, 2^172696697 is an apocalyptic number.

It is an amenable number.

172696697 is a deficient number, since it is larger than the sum of its proper divisors (1).

172696697 is an equidigital number, since it uses as much as digits as its factorization.

172696697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 53.

The square root of 172696697 is about 13141.4115299689. The cubic root of 172696697 is about 556.8796448409.

The spelling of 172696697 in words is "one hundred seventy-two million, six hundred ninety-six thousand, six hundred ninety-seven".