3147399 has 24 divisors (see below), whose sum is σ = 4867200. Its totient is φ = 1955520.

The previous prime is 3147349. The next prime is 3147421. The reversal of 3147399 is 9937413.

It is not a de Polignac number, because 3147399 - 2⁸ = 3147143 is a prime.

It is a super-2 number, since 2×3147399² = 19812240930402, which contains 22 as substring.

3147399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7897 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (202800).

Almost surely, 2^3147399 is an apocalyptic number.

3147399 is a deficient number, since it is larger than the sum of its proper divisors (1719801).

3147399 is a wasteful number, since it uses less digits than its factorization.

3147399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 452 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 3147399 is about 1774.0910348683. The cubic root of 3147399 is about 146.5493627021.

The spelling of 3147399 in words is "three million, one hundred forty-seven thousand, three hundred ninety-nine".