7878068 has 36 divisors (see below), whose sum is σ = 15562596. Its totient is φ = 3484800.

The previous prime is 7878047. The next prime is 7878071. The reversal of 7878068 is 8608787.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2439844 + 5438224 = 1562^2 + 2332^2 .

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19646 + ... + 20042.

Almost surely, 2^7878068 is an apocalyptic number.

It is an amenable number.

7878068 is a deficient number, since it is larger than the sum of its proper divisors (7684528).

7878068 is a wasteful number, since it uses less digits than its factorization.

7878068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 7878068 is about 2806.7896251768. The cubic root of 7878068 is about 198.9786935430.

The spelling of 7878068 in words is "seven million, eight hundred seventy-eight thousand, sixty-eight".