6678747 has 32 divisors (see below), whose sum is σ = 10675200. Its totient is φ = 4113504.

The previous prime is 6678743. The next prime is 6678751. The reversal of 6678747 is 7478766.

It is an interprime number because it is at equal distance from previous prime (6678743) and next prime (6678751).

It is not a de Polignac number, because 6678747 - 2² = 6678743 is a prime.

It is a super-2 number, since 2×6678747² = 89211322980018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6678743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23973 + ... + 24249.

It is an arithmetic number, because the mean of its divisors is an integer number (333600).

Almost surely, 2^6678747 is an apocalyptic number.

6678747 is a deficient number, since it is larger than the sum of its proper divisors (3996453).

6678747 is a wasteful number, since it uses less digits than its factorization.

6678747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 346 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 6678747 is about 2584.3271851683. The cubic root of 6678747 is about 188.3208174695.

The spelling of 6678747 in words is "six million, six hundred seventy-eight thousand, seven hundred forty-seven".