2799887 has 2 divisors, whose sum is σ = 2799888. Its totient is φ = 2799886.

The previous prime is 2799871. The next prime is 2799893. The reversal of 2799887 is 7889972.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2799887 - 2⁴ = 2799871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2799817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399943 + 1399944.

It is an arithmetic number, because the mean of its divisors is an integer number (1399944).

2^2799887 is an apocalyptic number.

2799887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2799887 is an equidigital number, since it uses as much as digits as its factorization.

2799887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 50.

The square root of 2799887 is about 1673.2862875193. The cubic root of 2799887 is about 140.9440785568.

The spelling of 2799887 in words is "two million, seven hundred ninety-nine thousand, eight hundred eighty-seven".