6670738 has 4 divisors (see below), whose sum is σ = 10006110. Its totient is φ = 3335368.

The previous prime is 6670709. The next prime is 6670751. The reversal of 6670738 is 8370766.

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., 4133089 + 2537649 = 2033^2 + 1593^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6670697 and 6670706.

It is an unprimeable number.

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, 1667683 + ... + 1667686.

Almost surely, 2^6670738 is an apocalyptic number.

6670738 is a deficient number, since it is larger than the sum of its proper divisors (3335372).

6670738 is a wasteful number, since it uses less digits than its factorization.

6670738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335371.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6670738 is about 2582.7771874477. Note that the first 3 decimals coincide. The cubic root of 6670738 is about 188.2455106932.

The spelling of 6670738 in words is "six million, six hundred seventy thousand, seven hundred thirty-eight".