165713798 has 4 divisors (see below), whose sum is σ = 248570700. Its totient is φ = 82856898.

The previous prime is 165713783. The next prime is 165713809. The reversal of 165713798 is 897317561.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×165713798² = 54922125695169608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 41428448 + ... + 41428451.

It is an arithmetic number, because the mean of its divisors is an integer number (62142675).

Almost surely, 2^165713798 is an apocalyptic number.

165713798 is a deficient number, since it is larger than the sum of its proper divisors (82856902).

165713798 is an equidigital number, since it uses as much as digits as its factorization.

165713798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82856901.

The product of its digits is 317520, while the sum is 47.

The square root of 165713798 is about 12872.9871436275. The cubic root of 165713798 is about 549.2704354292.

The spelling of 165713798 in words is "one hundred sixty-five million, seven hundred thirteen thousand, seven hundred ninety-eight".