4393394 has 4 divisors (see below), whose sum is σ = 6590094. Its totient is φ = 2196696.

The previous prime is 4393387. The next prime is 4393397. The reversal of 4393394 is 4933934.

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

It can be written as a sum of positive squares in only one way, i.e., 3367225 + 1026169 = 1835^2 + 1013^2 .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4393397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098347 + ... + 1098350.

Almost surely, 2^4393394 is an apocalyptic number.

4393394 is a deficient number, since it is larger than the sum of its proper divisors (2196700).

4393394 is a wasteful number, since it uses less digits than its factorization.

4393394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196699.

The product of its digits is 34992, while the sum is 35.

The square root of 4393394 is about 2096.0424614020. The cubic root of 4393394 is about 163.7822064345.

The spelling of 4393394 in words is "four million, three hundred ninety-three thousand, three hundred ninety-four".