7678994 has 16 divisors (see below), whose sum is σ = 11769408. Its totient is φ = 3756912.

The previous prime is 7678967. The next prime is 7678999. The reversal of 7678994 is 4998767.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7678999) 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, 27584 + ... + 27860.

It is an arithmetic number, because the mean of its divisors is an integer number (735588).

Almost surely, 2^7678994 is an apocalyptic number.

7678994 is a deficient number, since it is larger than the sum of its proper divisors (4090414).

7678994 is a wasteful number, since it uses less digits than its factorization.

7678994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 762048, while the sum is 50.

The square root of 7678994 is about 2771.0997816751. The cubic root of 7678994 is about 197.2883509545.

The spelling of 7678994 in words is "seven million, six hundred seventy-eight thousand, nine hundred ninety-four".