2987279 has 2 divisors, whose sum is σ = 2987280. Its totient is φ = 2987278.

The previous prime is 2987251. The next prime is 2987287. The reversal of 2987279 is 9727892.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2987279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493639 + 1493640.

It is an arithmetic number, because the mean of its divisors is an integer number (1493640).

2^2987279 is an apocalyptic number.

2987279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987279 is an equidigital number, since it uses as much as digits as its factorization.

2987279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The square root of 2987279 is about 1728.3746700296. The cubic root of 2987279 is about 144.0208142495.

The spelling of 2987279 in words is "two million, nine hundred eighty-seven thousand, two hundred seventy-nine".