393469 has 4 divisors (see below), whose sum is σ = 397980. Its totient is φ = 388960.

The previous prime is 393451. The next prime is 393473. The reversal of 393469 is 964393.

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

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 190969 = 450^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 393469 - 2⁹ = 392957 is a prime.

It is a super-2 number, since 2×393469² = 309635707922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393479) 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, 2122 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (99495).

2³⁹³⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

393469 is a deficient number, since it is larger than the sum of its proper divisors (4511).

393469 is an equidigital number, since it uses as much as digits as its factorization.

393469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510.

The product of its digits is 17496, while the sum is 34.

The square root of 393469 is about 627.2710737791. The cubic root of 393469 is about 73.2774206495.

The spelling of 393469 in words is "three hundred ninety-three thousand, four hundred sixty-nine".