3974779 has 2 divisors, whose sum is σ = 3974780. Its totient is φ = 3974778.

The previous prime is 3974759. The next prime is 3974783. The reversal of 3974779 is 9774793.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3974779 is a prime.

It is an Ulam number.

3974779 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3974749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987389 + 1987390.

It is an arithmetic number, because the mean of its divisors is an integer number (1987390).

Almost surely, 2^3974779 is an apocalyptic number.

3974779 is a deficient number, since it is larger than the sum of its proper divisors (1).

3974779 is an equidigital number, since it uses as much as digits as its factorization.

3974779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 333396, while the sum is 46.

The square root of 3974779 is about 1993.6847794975. The cubic root of 3974779 is about 158.4057695030.

It can be divided in two parts, 3974 and 779, that added together give a triangular number (4753 = T₉₇).

The spelling of 3974779 in words is "three million, nine hundred seventy-four thousand, seven hundred seventy-nine".