2687406 has 8 divisors (see below), whose sum is σ = 5374824. Its totient is φ = 895800.

The previous prime is 2687393. The next prime is 2687423. The reversal of 2687406 is 6047862.

It is a sphenic number, since it is the product of 3 distinct primes.

2687406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223945 + ... + 223956.

It is an arithmetic number, because the mean of its divisors is an integer number (671853).

2^2687406 is an apocalyptic number.

2687406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2687406 is a wasteful number, since it uses less digits than its factorization.

2687406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447906.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2687406 is about 1639.3309610936. The cubic root of 2687406 is about 139.0308231767.

The spelling of 2687406 in words is "two million, six hundred eighty-seven thousand, four hundred six".