2687457 has 16 divisors (see below), whose sum is σ = 3725568. Its totient is φ = 1722000.

The previous prime is 2687423. The next prime is 2687467. The reversal of 2687457 is 7547862.

It is not a de Polignac number, because 2687457 - 2⁶ = 2687393 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 6⁸ + 8² + 7⁶ + 4⁵ + 5² + 7⁷ .

2687457 is a lucky 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 15 ways as a sum of consecutive naturals, for example, 10582 + ... + 10832.

It is an arithmetic number, because the mean of its divisors is an integer number (232848).

2^2687457 is an apocalyptic number.

It is an amenable number.

2687457 is a deficient number, since it is larger than the sum of its proper divisors (1038111).

2687457 is a wasteful number, since it uses less digits than its factorization.

2687457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 94080, while the sum is 39.

The square root of 2687457 is about 1639.3465161460. The cubic root of 2687457 is about 139.0317026527.

The spelling of 2687457 in words is "two million, six hundred eighty-seven thousand, four hundred fifty-seven".