3993459 has 4 divisors (see below), whose sum is σ = 5324616. Its totient is φ = 2662304.

The previous prime is 3993443. The next prime is 3993469. The reversal of 3993459 is 9543993.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9543993 = 3 ⋅3181331.

It is a cyclic number.

It is not a de Polignac number, because 3993459 - 2⁴ = 3993443 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3993459.

It is not an unprimeable number, because it can be changed into a prime (3993469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665574 + ... + 665579.

It is an arithmetic number, because the mean of its divisors is an integer number (1331154).

Almost surely, 2^3993459 is an apocalyptic number.

3993459 is a deficient number, since it is larger than the sum of its proper divisors (1331157).

3993459 is a wasteful number, since it uses less digits than its factorization.

3993459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331156.

The product of its digits is 131220, while the sum is 42.

The square root of 3993459 is about 1998.3640809422. The cubic root of 3993459 is about 158.6535314041.

It can be divided in two parts, 39934 and 59, that added together give a palindrome (39993).

The spelling of 3993459 in words is "three million, nine hundred ninety-three thousand, four hundred fifty-nine".