172065763 has 2 divisors, whose sum is σ = 172065764. Its totient is φ = 172065762.

The previous prime is 172065757. The next prime is 172065781. The reversal of 172065763 is 367560271.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172065763 is a prime.

It is not a weakly prime, because it can be changed into another prime (172065703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86032881 + 86032882.

It is an arithmetic number, because the mean of its divisors is an integer number (86032882).

Almost surely, 2^172065763 is an apocalyptic number.

172065763 is a deficient number, since it is larger than the sum of its proper divisors (1).

172065763 is an equidigital number, since it uses as much as digits as its factorization.

172065763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 172065763 is about 13117.3839998683. The cubic root of 172065763 is about 556.2006450676.

The spelling of 172065763 in words is "one hundred seventy-two million, sixty-five thousand, seven hundred sixty-three".