2542847 has 4 divisors (see below), whose sum is σ = 2547456. Its totient is φ = 2538240.

The previous prime is 2542829. The next prime is 2542849. The reversal of 2542847 is 7482452.

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 2542847 - 2⁸ = 2542591 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542849) 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, 1343 + ... + 2624.

It is an arithmetic number, because the mean of its divisors is an integer number (636864).

2^2542847 is an apocalyptic number.

2542847 is a deficient number, since it is larger than the sum of its proper divisors (4609).

2542847 is an equidigital number, since it uses as much as digits as its factorization.

2542847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608.

The product of its digits is 17920, while the sum is 32.

The square root of 2542847 is about 1594.6306782450. The cubic root of 2542847 is about 136.4918572699.

The spelling of 2542847 in words is "two million, five hundred forty-two thousand, eight hundred forty-seven".