7878082 has 8 divisors (see below), whose sum is σ = 12224700. Its totient is φ = 3803184.

The previous prime is 7878071. The next prime is 7878097. The reversal of 7878082 is 2808787.

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 43681 = 2799^2 + 209^2 .

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

It is a super-5 number, since 5×7878082⁵ (a number of 36 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67857 + ... + 67972.

Almost surely, 2^7878082 is an apocalyptic number.

7878082 is a deficient number, since it is larger than the sum of its proper divisors (4346618).

7878082 is a wasteful number, since it uses less digits than its factorization.

7878082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135860.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 7878082 is about 2806.7921191282. The cubic root of 7878082 is about 198.9788114103.

The spelling of 7878082 in words is "seven million, eight hundred seventy-eight thousand, eighty-two".