165427793 has 2 divisors, whose sum is σ = 165427794. Its totient is φ = 165427792.

The previous prime is 165427783. The next prime is 165427831. The reversal of 165427793 is 397724561.

165427793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158180929 + 7246864 = 12577^2 + 2692^2 .

It is a cyclic number.

It is not a de Polignac number, because 165427793 - 2¹⁰ = 165426769 is a prime.

It is not a weakly prime, because it can be changed into another prime (165427723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82713896 + 82713897.

It is an arithmetic number, because the mean of its divisors is an integer number (82713897).

Almost surely, 2^165427793 is an apocalyptic number.

It is an amenable number.

165427793 is a deficient number, since it is larger than the sum of its proper divisors (1).

165427793 is an equidigital number, since it uses as much as digits as its factorization.

165427793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 165427793 is about 12861.8736193449. The cubic root of 165427793 is about 548.9542586721.

The spelling of 165427793 in words is "one hundred sixty-five million, four hundred twenty-seven thousand, seven hundred ninety-three".