2549387 has 2 divisors, whose sum is σ = 2549388. Its totient is φ = 2549386.

The previous prime is 2549383. The next prime is 2549423. The reversal of 2549387 is 7839452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2549387 - 2² = 2549383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2549387.

It is not a weakly prime, because it can be changed into another prime (2549381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274693 + 1274694.

It is an arithmetic number, because the mean of its divisors is an integer number (1274694).

2^2549387 is an apocalyptic number.

2549387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549387 is an equidigital number, since it uses as much as digits as its factorization.

2549387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 2549387 is about 1596.6799929854. The cubic root of 2549387 is about 136.6087724909.

The spelling of 2549387 in words is "two million, five hundred forty-nine thousand, three hundred eighty-seven".