3947079 has 8 divisors (see below), whose sum is σ = 5539840. Its totient is φ = 2492856.

The previous prime is 3947071. The next prime is 3947087. The reversal of 3947079 is 9707493.

It is an interprime number because it is at equal distance from previous prime (3947071) and next prime (3947087).

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

It is not a de Polignac number, because 3947079 - 2³ = 3947071 is a prime.

It is a Duffinian number.

3947079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3947071) 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, 34567 + ... + 34680.

It is an arithmetic number, because the mean of its divisors is an integer number (692480).

Almost surely, 2^3947079 is an apocalyptic number.

3947079 is a deficient number, since it is larger than the sum of its proper divisors (1592761).

3947079 is a wasteful number, since it uses less digits than its factorization.

3947079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69269.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 3947079 is about 1986.7256982281. The cubic root of 3947079 is about 158.0369379002.

It can be divided in two parts, 394707 and 9, that added together give a triangular number (394716 = T₈₈₈).

The spelling of 3947079 in words is "three million, nine hundred forty-seven thousand, seventy-nine".