6613994 has 8 divisors (see below), whose sum is σ = 9931908. Its totient is φ = 3303360.

The previous prime is 6613987. The next prime is 6614017. The reversal of 6613994 is 4993166.

It can be written as a sum of positive squares in 2 ways, for example, as 5736025 + 877969 = 2395^2 + 937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624 + ... + 4484.

Almost surely, 2^6613994 is an apocalyptic number.

6613994 is a deficient number, since it is larger than the sum of its proper divisors (3317914).

6613994 is a wasteful number, since it uses less digits than its factorization.

6613994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640.

The product of its digits is 34992, while the sum is 38.

The square root of 6613994 is about 2571.7686521147. The cubic root of 6613994 is about 187.7102258354.

The spelling of 6613994 in words is "six million, six hundred thirteen thousand, nine hundred ninety-four".