2879847 has 8 divisors (see below), whose sum is σ = 4266480. Its totient is φ = 1919880.

The previous prime is 2879843. The next prime is 2879857. The reversal of 2879847 is 7489782.

It is not a de Polignac number, because 2879847 - 2² = 2879843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2879843) 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, 53304 + ... + 53357.

It is an arithmetic number, because the mean of its divisors is an integer number (533310).

2^2879847 is an apocalyptic number.

2879847 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2879847 is a deficient number, since it is larger than the sum of its proper divisors (1386633).

2879847 is a wasteful number, since it uses less digits than its factorization.

2879847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106670 (or 106664 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 2879847 is about 1697.0111961917. The cubic root of 2879847 is about 142.2732126689.

The spelling of 2879847 in words is "two million, eight hundred seventy-nine thousand, eight hundred forty-seven".