3942379 has 4 divisors (see below), whose sum is σ = 4505584. Its totient is φ = 3379176.

The previous prime is 3942377. The next prime is 3942383. The reversal of 3942379 is 9732493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9732493 = 199 ⋅48907.

It is a cyclic number.

It is not a de Polignac number, because 3942379 - 2¹ = 3942377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3942373) 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, 281592 + ... + 281605.

It is an arithmetic number, because the mean of its divisors is an integer number (1126396).

Almost surely, 2^3942379 is an apocalyptic number.

3942379 is a deficient number, since it is larger than the sum of its proper divisors (563205).

3942379 is an equidigital number, since it uses as much as digits as its factorization.

3942379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563204.

The product of its digits is 40824, while the sum is 37.

The square root of 3942379 is about 1985.5424951383. The cubic root of 3942379 is about 157.9741852821.

The spelling of 3942379 in words is "three million, nine hundred forty-two thousand, three hundred seventy-nine".