7878804 has 24 divisors (see below), whose sum is σ = 18812640. Its totient is φ = 2565024.

The previous prime is 7878797. The next prime is 7878809. The reversal of 7878804 is 4088787.

It is a super-3 number, since 3×7878804³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7119 + ... + 8150.

It is an arithmetic number, because the mean of its divisors is an integer number (783860).

Almost surely, 2^7878804 is an apocalyptic number.

It is an amenable number.

7878804 is an abundant number, since it is smaller than the sum of its proper divisors (10933836).

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

7878804 is a wasteful number, since it uses less digits than its factorization.

7878804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15319 (or 15317 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 7878804 is about 2806.9207327604. The cubic root of 7878804 is about 198.9848898066.

It can be divided in two parts, 787 and 8804, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 7878804 in words is "seven million, eight hundred seventy-eight thousand, eight hundred four".