6678662 has 4 divisors (see below), whose sum is σ = 10017996. Its totient is φ = 3339330.

The previous prime is 6678647. The next prime is 6678667. The reversal of 6678662 is 2668766.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6678662² = 89209052220488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1669664 + ... + 1669667.

It is an arithmetic number, because the mean of its divisors is an integer number (2504499).

Almost surely, 2^6678662 is an apocalyptic number.

6678662 is a deficient number, since it is larger than the sum of its proper divisors (3339334).

6678662 is a wasteful number, since it uses less digits than its factorization.

6678662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339333.

The product of its digits is 145152, while the sum is 41.

The square root of 6678662 is about 2584.3107398299. The cubic root of 6678662 is about 188.3200185503.

The spelling of 6678662 in words is "six million, six hundred seventy-eight thousand, six hundred sixty-two".