2649487 has 2 divisors, whose sum is σ = 2649488. Its totient is φ = 2649486.

The previous prime is 2649481. The next prime is 2649497. The reversal of 2649487 is 7849462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2649487 is a prime.

It is a Chen prime.

2649487 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1324743 + 1324744.

It is an arithmetic number, because the mean of its divisors is an integer number (1324744).

2^2649487 is an apocalyptic number.

2649487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649487 is an equidigital number, since it uses as much as digits as its factorization.

2649487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 2649487 is about 1627.7244852861. The cubic root of 2649487 is about 138.3738201843.

It can be divided in two parts, 2649 and 487, that added together give a square (3136 = 56²).

The spelling of 2649487 in words is "two million, six hundred forty-nine thousand, four hundred eighty-seven".