2687481 has 12 divisors (see below), whose sum is σ = 4051008. Its totient is φ = 1713624.

The previous prime is 2687473. The next prime is 2687491. The reversal of 2687481 is 1847862.

It is not a de Polignac number, because 2687481 - 2³ = 2687473 is a prime.

It is a super-2 number, since 2×2687481² = 14445108250722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2687491) 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, 6285 + ... + 6698.

It is an arithmetic number, because the mean of its divisors is an integer number (337584).

2^2687481 is an apocalyptic number.

It is an amenable number.

2687481 is a deficient number, since it is larger than the sum of its proper divisors (1363527).

2687481 is a wasteful number, since it uses less digits than its factorization.

2687481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13012 (or 13009 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2687481 is about 1639.3538361196. The cubic root of 2687481 is about 139.0321165199.

The spelling of 2687481 in words is "two million, six hundred eighty-seven thousand, four hundred eighty-one".