8238169493 has 4 divisors (see below), whose sum is σ = 8503916928. Its totient is φ = 7972422060.

The previous prime is 8238169477. The next prime is 8238169529. The reversal of 8238169493 is 3949618328.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8238169493 - 2⁴ = 8238169477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8238169993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132873671 + ... + 132873732.

It is an arithmetic number, because the mean of its divisors is an integer number (2125979232).

Almost surely, 2^8238169493 is an apocalyptic number.

It is an amenable number.

8238169493 is a deficient number, since it is larger than the sum of its proper divisors (265747435).

8238169493 is a wasteful number, since it uses less digits than its factorization.

8238169493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265747434.

The product of its digits is 2239488, while the sum is 53.

The square root of 8238169493 is about 90764.3624612656. The cubic root of 8238169493 is about 2019.6536913266.

The spelling of 8238169493 in words is "eight billion, two hundred thirty-eight million, one hundred sixty-nine thousand, four hundred ninety-three".