7920678 has 8 divisors (see below), whose sum is σ = 15841368. Its totient is φ = 2640224.

The previous prime is 7920677. The next prime is 7920707. The reversal of 7920678 is 8760297.

7920678 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

7920678 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660051 + ... + 660062.

It is an arithmetic number, because the mean of its divisors is an integer number (1980171).

Almost surely, 2^7920678 is an apocalyptic number.

7920678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7920678 is a wasteful number, since it uses less digits than its factorization.

7920678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320118.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 7920678 is about 2814.3699117209. The cubic root of 7920678 is about 199.3367865036.

The spelling of 7920678 in words is "seven million, nine hundred twenty thousand, six hundred seventy-eight".