2547387 has 12 divisors (see below), whose sum is σ = 3873480. Its totient is φ = 1608768.

The previous prime is 2547361. The next prime is 2547397. The reversal of 2547387 is 7837452.

It is not a de Polignac number, because 2547387 - 2⁶ = 2547323 is a prime.

2547387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2547397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7278 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (322790).

2^2547387 is an apocalyptic number.

2547387 is a deficient number, since it is larger than the sum of its proper divisors (1326093).

2547387 is a wasteful number, since it uses less digits than its factorization.

2547387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14922 (or 14919 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 2547387 is about 1596.0535705295. The cubic root of 2547387 is about 136.5730398458.

The spelling of 2547387 in words is "two million, five hundred forty-seven thousand, three hundred eighty-seven".