7863804 has 60 divisors (see below), whose sum is σ = 22150744. Its totient is φ = 2418336.

The previous prime is 7863803. The next prime is 7863811. The reversal of 7863804 is 4083687.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 7⁸ + 8³ + 6⁴ + 3³ + 8⁷ + 0 + 4² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7863803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3279 + ... + 5145.

Almost surely, 2^7863804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7863804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11075372).

7863804 is an abundant number, since it is smaller than the sum of its proper divisors (14286940).

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

7863804 is a wasteful number, since it uses less digits than its factorization.

7863804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 7863804 is about 2804.2474926440. The cubic root of 7863804 is about 198.8585309696.

The spelling of 7863804 in words is "seven million, eight hundred sixty-three thousand, eight hundred four".