6625478 has 8 divisors (see below), whose sum is σ = 10522872. Its totient is φ = 3117856.

The previous prime is 6625459. The next prime is 6625481. The reversal of 6625478 is 8745266.

It is a happy number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97400 + ... + 97467.

It is an arithmetic number, because the mean of its divisors is an integer number (1315359).

Almost surely, 2^6625478 is an apocalyptic number.

6625478 is a deficient number, since it is larger than the sum of its proper divisors (3897394).

6625478 is a wasteful number, since it uses less digits than its factorization.

6625478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194886.

The product of its digits is 80640, while the sum is 38.

The square root of 6625478 is about 2574.0003885004. Note that the first 3 decimals coincide. The cubic root of 6625478 is about 187.8188045951.

The spelling of 6625478 in words is "six million, six hundred twenty-five thousand, four hundred seventy-eight".