3147047 has 4 divisors (see below), whose sum is σ = 3164616. Its totient is φ = 3129480.

The previous prime is 3147017. The next prime is 3147049. The reversal of 3147047 is 7407413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3147047 - 2¹⁰ = 3146023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147049) 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, 8513 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (791154).

Almost surely, 2^3147047 is an apocalyptic number.

3147047 is a deficient number, since it is larger than the sum of its proper divisors (17569).

3147047 is a wasteful number, since it uses less digits than its factorization.

3147047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17568.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 3147047 is about 1773.9918263622. The cubic root of 3147047 is about 146.5438992174.

The spelling of 3147047 in words is "three million, one hundred forty-seven thousand, forty-seven".