7873856 has 28 divisors (see below), whose sum is σ = 16546068. Its totient is φ = 3704832.

The previous prime is 7873849. The next prime is 7873871. The reversal of 7873856 is 6583787.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 2190400 = 2384^2 + 1480^2 .

It is a zygodrome in base 3.

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, 2531 + ... + 4706.

It is an arithmetic number, because the mean of its divisors is an integer number (590931).

Almost surely, 2^7873856 is an apocalyptic number.

It is an amenable number.

7873856 is an abundant number, since it is smaller than the sum of its proper divisors (8672212).

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

7873856 is a wasteful number, since it uses less digits than its factorization.

7873856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266 (or 7256 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 7873856 is about 2806.0392014368. The cubic root of 7873856 is about 198.9432259781.

The spelling of 7873856 in words is "seven million, eight hundred seventy-three thousand, eight hundred fifty-six".