2439730687 has 2 divisors, whose sum is σ = 2439730688. Its totient is φ = 2439730686.

The previous prime is 2439730633. The next prime is 2439730703. The reversal of 2439730687 is 7860379342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2439730687 - 2²³ = 2431342079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2439730687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2439730487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219865343 + 1219865344.

It is an arithmetic number, because the mean of its divisors is an integer number (1219865344).

Almost surely, 2^2439730687 is an apocalyptic number.

2439730687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439730687 is an equidigital number, since it uses as much as digits as its factorization.

2439730687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The square root of 2439730687 is about 49393.6300245285. The cubic root of 2439730687 is about 1346.2135667353.

The spelling of 2439730687 in words is "two billion, four hundred thirty-nine million, seven hundred thirty thousand, six hundred eighty-seven".