4390613 has 2 divisors, whose sum is σ = 4390614. Its totient is φ = 4390612.

The previous prime is 4390559. The next prime is 4390619. The reversal of 4390613 is 3160934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4153444 + 237169 = 2038^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 4390613 - 2⁸ = 4390357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4390619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195306 + 2195307.

It is an arithmetic number, because the mean of its divisors is an integer number (2195307).

Almost surely, 2^4390613 is an apocalyptic number.

It is an amenable number.

4390613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390613 is an equidigital number, since it uses as much as digits as its factorization.

4390613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 4390613 is about 2095.3789633381. The cubic root of 4390613 is about 163.7476413234.

The spelling of 4390613 in words is "four million, three hundred ninety thousand, six hundred thirteen".