3147287 has 12 divisors (see below), whose sum is σ = 3720024. Its totient is φ = 2639520.

The previous prime is 3147269. The next prime is 3147311. The reversal of 3147287 is 7827413.

It is a happy number.

It is not a de Polignac number, because 3147287 - 2⁶ = 3147223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1013 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (310002).

Almost surely, 2^3147287 is an apocalyptic number.

3147287 is a deficient number, since it is larger than the sum of its proper divisors (572737).

3147287 is a wasteful number, since it uses less digits than its factorization.

3147287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1717 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 3147287 is about 1774.0594691272. The cubic root of 3147287 is about 146.5476243648.

The spelling of 3147287 in words is "three million, one hundred forty-seven thousand, two hundred eighty-seven".