2740487 has 4 divisors (see below), whose sum is σ = 2743800. Its totient is φ = 2737176.

The previous prime is 2740483. The next prime is 2740489. The reversal of 2740487 is 7840472.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2740487 - 2² = 2740483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764 + ... + 2462.

It is an arithmetic number, because the mean of its divisors is an integer number (685950).

2^2740487 is an apocalyptic number.

2740487 is a deficient number, since it is larger than the sum of its proper divisors (3313).

2740487 is a wasteful number, since it uses less digits than its factorization.

2740487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 2740487 is about 1655.4416329185. The cubic root of 2740487 is about 139.9402295878.

Adding to 2740487 its product of nonzero digits (12544), we get a triangular number (2753031 = T₂₃₄₆).

The spelling of 2740487 in words is "two million, seven hundred forty thousand, four hundred eighty-seven".