3958459 has 2 divisors, whose sum is σ = 3958460. Its totient is φ = 3958458.

The previous prime is 3958457. The next prime is 3958477. The reversal of 3958459 is 9548593.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9548593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3958459 - 2¹ = 3958457 is a prime.

Together with 3958457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3958457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979229 + 1979230.

It is an arithmetic number, because the mean of its divisors is an integer number (1979230).

Almost surely, 2^3958459 is an apocalyptic number.

3958459 is a deficient number, since it is larger than the sum of its proper divisors (1).

3958459 is an equidigital number, since it uses as much as digits as its factorization.

3958459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 3958459 is about 1989.5876457196. The cubic root of 3958459 is about 158.1886732898.

The spelling of 3958459 in words is "three million, nine hundred fifty-eight thousand, four hundred fifty-nine".