3658439 has 2 divisors, whose sum is σ = 3658440. Its totient is φ = 3658438.

The previous prime is 3658429. The next prime is 3658463. The reversal of 3658439 is 9348563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3658439 - 2⁴ = 3658423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3658409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1829219 + 1829220.

It is an arithmetic number, because the mean of its divisors is an integer number (1829220).

Almost surely, 2^3658439 is an apocalyptic number.

3658439 is a deficient number, since it is larger than the sum of its proper divisors (1).

3658439 is an equidigital number, since it uses as much as digits as its factorization.

3658439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 3658439 is about 1912.7046295756. The cubic root of 3658439 is about 154.0867420472.

The spelling of 3658439 in words is "three million, six hundred fifty-eight thousand, four hundred thirty-nine".