3978799 has 8 divisors (see below), whose sum is σ = 4596048. Its totient is φ = 3404160.

The previous prime is 3978781. The next prime is 3978803. The reversal of 3978799 is 9978793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3978799 - 2⁷ = 3978671 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 (3978739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10452 + ... + 10825.

It is an arithmetic number, because the mean of its divisors is an integer number (574506).

Almost surely, 2^3978799 is an apocalyptic number.

3978799 is a deficient number, since it is larger than the sum of its proper divisors (617249).

3978799 is a wasteful number, since it uses less digits than its factorization.

3978799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21305.

The product of its digits is 857304, while the sum is 52.

The square root of 3978799 is about 1994.6927081633. The cubic root of 3978799 is about 158.4591541595.

The spelling of 3978799 in words is "three million, nine hundred seventy-eight thousand, seven hundred ninety-nine".