393479 has 2 divisors, whose sum is σ = 393480. Its totient is φ = 393478.

The previous prime is 393473. The next prime is 393487. The reversal of 393479 is 974393.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393479 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196739 + 196740.

It is an arithmetic number, because the mean of its divisors is an integer number (196740).

2³⁹³⁴⁷⁹ is an apocalyptic number.

393479 is a deficient number, since it is larger than the sum of its proper divisors (1).

393479 is an equidigital number, since it uses as much as digits as its factorization.

393479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 35.

The square root of 393479 is about 627.2790447640. The cubic root of 393479 is about 73.2780414252.

The spelling of 393479 in words is "three hundred ninety-three thousand, four hundred seventy-nine".