4392013 has 2 divisors, whose sum is σ = 4392014. Its totient is φ = 4392012.

The previous prime is 4392007. The next prime is 4392077. The reversal of 4392013 is 3102934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2601769 + 1790244 = 1613^2 + 1338^2 .

It is a cyclic number.

It is not a de Polignac number, because 4392013 - 2²¹ = 2294861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4392313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2196006 + 2196007.

It is an arithmetic number, because the mean of its divisors is an integer number (2196007).

Almost surely, 2^4392013 is an apocalyptic number.

It is an amenable number.

4392013 is a deficient number, since it is larger than the sum of its proper divisors (1).

4392013 is an equidigital number, since it uses as much as digits as its factorization.

4392013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 4392013 is about 2095.7130051608. The cubic root of 4392013 is about 163.7650437784.

Adding to 4392013 its reverse (3102934), we get a palindrome (7494947).

The spelling of 4392013 in words is "four million, three hundred ninety-two thousand, thirteen".