393434 has 4 divisors (see below), whose sum is σ = 590154. Its totient is φ = 196716.

The previous prime is 393413. The next prime is 393451. The reversal of 393434 is 434393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434393 = 337 ⋅1289.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 2809 = 625^2 + 53^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98357 + ... + 98360.

2³⁹³⁴³⁴ is an apocalyptic number.

393434 is a deficient number, since it is larger than the sum of its proper divisors (196720).

393434 is a wasteful number, since it uses less digits than its factorization.

393434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196719.

The product of its digits is 3888, while the sum is 26.

The square root of 393434 is about 627.2431745344. The cubic root of 393434 is about 73.2752478517.

The spelling of 393434 in words is "three hundred ninety-three thousand, four hundred thirty-four".