2687461 has 4 divisors (see below), whose sum is σ = 3071392. Its totient is φ = 2303532.

The previous prime is 2687423. The next prime is 2687467. The reversal of 2687461 is 1647862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2687461 - 2⁹ = 2686949 is a prime.

It is a Duffinian number.

2687461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687467) 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, 191955 + ... + 191968.

It is an arithmetic number, because the mean of its divisors is an integer number (767848).

2^2687461 is an apocalyptic number.

It is an amenable number.

2687461 is a deficient number, since it is larger than the sum of its proper divisors (383931).

2687461 is an equidigital number, since it uses as much as digits as its factorization.

2687461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383930.

The product of its digits is 16128, while the sum is 34.

The square root of 2687461 is about 1639.3477361439. The cubic root of 2687461 is about 139.0317716307.

The spelling of 2687461 in words is "two million, six hundred eighty-seven thousand, four hundred sixty-one".