7668478 has 8 divisors (see below), whose sum is σ = 11590920. Its totient is φ = 3804840.

The previous prime is 7668467. The next prime is 7668481. The reversal of 7668478 is 8748667.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14373 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (1448865).

Almost surely, 2^7668478 is an apocalyptic number.

7668478 is a deficient number, since it is larger than the sum of its proper divisors (3922442).

7668478 is a wasteful number, since it uses less digits than its factorization.

7668478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29402.

The product of its digits is 451584, while the sum is 46.

The square root of 7668478 is about 2769.2016900183. The cubic root of 7668478 is about 197.1982509545.

The spelling of 7668478 in words is "seven million, six hundred sixty-eight thousand, four hundred seventy-eight".