2787479 has 2 divisors, whose sum is σ = 2787480. Its totient is φ = 2787478.

The previous prime is 2787461. The next prime is 2787481. The reversal of 2787479 is 9747872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2787479 - 2²⁰ = 1738903 is a prime.

Together with 2787481, 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 (2787409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1393739 + 1393740.

It is an arithmetic number, because the mean of its divisors is an integer number (1393740).

2^2787479 is an apocalyptic number.

2787479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2787479 is an equidigital number, since it uses as much as digits as its factorization.

2787479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 44.

The square root of 2787479 is about 1669.5744966907. The cubic root of 2787479 is about 140.7355672981.

The spelling of 2787479 in words is "two million, seven hundred eighty-seven thousand, four hundred seventy-nine".