3147979 has 8 divisors (see below), whose sum is σ = 3303360. Its totient is φ = 2995776.

The previous prime is 3147973. The next prime is 3147983. The reversal of 3147979 is 9797413.

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 3147979 - 2³ = 3147971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3147971) 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, 1374 + ... + 2860.

It is an arithmetic number, because the mean of its divisors is an integer number (412920).

Almost surely, 2^3147979 is an apocalyptic number.

3147979 is a deficient number, since it is larger than the sum of its proper divisors (155381).

3147979 is a wasteful number, since it uses less digits than its factorization.

3147979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589.

The product of its digits is 47628, while the sum is 40.

The square root of 3147979 is about 1774.2544913287. The cubic root of 3147979 is about 146.5583641464.

The spelling of 3147979 in words is "three million, one hundred forty-seven thousand, nine hundred seventy-nine".