393169 has 4 divisors (see below), whose sum is σ = 449344. Its totient is φ = 336996.

The previous prime is 393161. The next prime is 393181. The reversal of 393169 is 961393.

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 393169 - 2³ = 393161 is a prime.

It is a super-2 number, since 2×393169² = 309163725122, which contains 22 as substring.

393169 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 393169.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393161) 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, 28077 + ... + 28090.

It is an arithmetic number, because the mean of its divisors is an integer number (112336).

2³⁹³¹⁶⁹ is an apocalyptic number.

It is an amenable number.

393169 is a deficient number, since it is larger than the sum of its proper divisors (56175).

393169 is an equidigital number, since it uses as much as digits as its factorization.

393169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56174.

The product of its digits is 4374, while the sum is 31.

The square root of 393169 is about 627.0318971153. The cubic root of 393169 is about 73.2587924852.

The spelling of 393169 in words is "three hundred ninety-three thousand, one hundred sixty-nine".