3993479 has 4 divisors (see below), whose sum is σ = 4563984. Its totient is φ = 3422976.

The previous prime is 3993469. The next prime is 3993481. The reversal of 3993479 is 9743993.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3993479 - 2¹² = 3989383 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 285242 + ... + 285255.

It is an arithmetic number, because the mean of its divisors is an integer number (1140996).

Almost surely, 2^3993479 is an apocalyptic number.

3993479 is a deficient number, since it is larger than the sum of its proper divisors (570505).

3993479 is an equidigital number, since it uses as much as digits as its factorization.

3993479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570504.

The product of its digits is 183708, while the sum is 44.

The square root of 3993479 is about 1998.3690850291. The cubic root of 3993479 is about 158.6537962593.

The spelling of 3993479 in words is "three million, nine hundred ninety-three thousand, four hundred seventy-nine".