6678634 has 4 divisors (see below), whose sum is σ = 10017954. Its totient is φ = 3339316.

The previous prime is 6678629. The next prime is 6678641. The reversal of 6678634 is 4368766.

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

It can be written as a sum of positive squares in only one way, i.e., 3598609 + 3080025 = 1897^2 + 1755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1669657 + ... + 1669660.

Almost surely, 2^6678634 is an apocalyptic number.

6678634 is a deficient number, since it is larger than the sum of its proper divisors (3339320).

6678634 is a wasteful number, since it uses less digits than its factorization.

6678634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339319.

The product of its digits is 145152, while the sum is 40.

The square root of 6678634 is about 2584.3053225190. The cubic root of 6678634 is about 188.3197553755.

The spelling of 6678634 in words is "six million, six hundred seventy-eight thousand, six hundred thirty-four".