2702639 has 2 divisors, whose sum is σ = 2702640. Its totient is φ = 2702638.

The previous prime is 2702603. The next prime is 2702647. The reversal of 2702639 is 9362072.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2702639 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 (2702839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1351319 + 1351320.

It is an arithmetic number, because the mean of its divisors is an integer number (1351320).

2^2702639 is an apocalyptic number.

2702639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2702639 is an equidigital number, since it uses as much as digits as its factorization.

2702639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 2702639 is about 1643.9704985188. The cubic root of 2702639 is about 139.2930174687.

The spelling of 2702639 in words is "two million, seven hundred two thousand, six hundred thirty-nine".