2479847 has 2 divisors, whose sum is σ = 2479848. Its totient is φ = 2479846.

The previous prime is 2479811. The next prime is 2479849. The reversal of 2479847 is 7489742.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2479847 - 2¹² = 2475751 is a prime.

It is a super-2 number, since 2×2479847² = 12299282286818, which contains 22 as substring.

Together with 2479849, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2479849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239923 + 1239924.

It is an arithmetic number, because the mean of its divisors is an integer number (1239924).

2^2479847 is an apocalyptic number.

2479847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2479847 is an equidigital number, since it uses as much as digits as its factorization.

2479847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 2479847 is about 1574.7529965045. The cubic root of 2479847 is about 135.3552054133.

The spelling of 2479847 in words is "two million, four hundred seventy-nine thousand, eight hundred forty-seven".