6662578 has 16 divisors (see below), whose sum is σ = 11329920. Its totient is φ = 2912976.

The previous prime is 6662567. The next prime is 6662581. The reversal of 6662578 is 8752666.

It is a self number, because there is not a number n which added to its sum of digits gives 6662578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6250 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (708120).

Almost surely, 2^6662578 is an apocalyptic number.

6662578 is a deficient number, since it is larger than the sum of its proper divisors (4667342).

6662578 is a wasteful number, since it uses less digits than its factorization.

6662578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521.

The product of its digits is 120960, while the sum is 40.

The square root of 6662578 is about 2581.1970091413. The cubic root of 6662578 is about 188.1687220813.

The spelling of 6662578 in words is "six million, six hundred sixty-two thousand, five hundred seventy-eight".