8120678 has 4 divisors (see below), whose sum is σ = 12181020. Its totient is φ = 4060338.

The previous prime is 8120677. The next prime is 8120683. The reversal of 8120678 is 8760218.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8120678² = 131890822359368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030168 + ... + 2030171.

It is an arithmetic number, because the mean of its divisors is an integer number (3045255).

Almost surely, 2^8120678 is an apocalyptic number.

8120678 is a deficient number, since it is larger than the sum of its proper divisors (4060342).

8120678 is a wasteful number, since it uses less digits than its factorization.

8120678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060341.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 8120678 is about 2849.6803329496. The cubic root of 8120678 is about 201.0006352958. Note that the first 3 decimals are identical.

The spelling of 8120678 in words is "eight million, one hundred twenty thousand, six hundred seventy-eight".