2887147 has 4 divisors (see below), whose sum is σ = 2965216. Its totient is φ = 2809080.

The previous prime is 2887141. The next prime is 2887151. The reversal of 2887147 is 7417882.

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 2887147 - 2³ = 2887139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 78031 = 2887147 / (2 + 8 + 8 + 7 + 1 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2887141) 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, 38979 + ... + 39052.

It is an arithmetic number, because the mean of its divisors is an integer number (741304).

2^2887147 is an apocalyptic number.

2887147 is a deficient number, since it is larger than the sum of its proper divisors (78069).

2887147 is an equidigital number, since it uses as much as digits as its factorization.

2887147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78068.

The product of its digits is 25088, while the sum is 37.

The square root of 2887147 is about 1699.1606751570. The cubic root of 2887147 is about 142.3933253142.

The spelling of 2887147 in words is "two million, eight hundred eighty-seven thousand, one hundred forty-seven".