2687401 has 4 divisors (see below), whose sum is σ = 2780100. Its totient is φ = 2594704.

The previous prime is 2687393. The next prime is 2687423. The reversal of 2687401 is 1047862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1000000 + 1687401 = 1000^2 + 1299^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687401 - 2³ = 2687393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2687401.

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 3 ways as a sum of consecutive naturals, for example, 46306 + ... + 46363.

It is an arithmetic number, because the mean of its divisors is an integer number (695025).

2^2687401 is an apocalyptic number.

It is an amenable number.

2687401 is a deficient number, since it is larger than the sum of its proper divisors (92699).

2687401 is an equidigital number, since it uses as much as digits as its factorization.

2687401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92698.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2687401 is about 1639.3294360805. The cubic root of 2687401 is about 139.0307369530.

The spelling of 2687401 in words is "two million, six hundred eighty-seven thousand, four hundred one".