2487739 has 2 divisors, whose sum is σ = 2487740. Its totient is φ = 2487738.

The previous prime is 2487713. The next prime is 2487743. The reversal of 2487739 is 9377842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2487739 - 2⁹ = 2487227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2487139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243869 + 1243870.

It is an arithmetic number, because the mean of its divisors is an integer number (1243870).

2^2487739 is an apocalyptic number.

2487739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2487739 is an equidigital number, since it uses as much as digits as its factorization.

2487739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 2487739 is about 1577.2567958326. The cubic root of 2487739 is about 135.4986406185.

The spelling of 2487739 in words is "two million, four hundred eighty-seven thousand, seven hundred thirty-nine".