6613990 has 16 divisors (see below), whose sum is σ = 11940048. Its totient is φ = 2637856.

The previous prime is 6613987. The next prime is 6614017. The reversal of 6613990 is 993166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (746253).

Almost surely, 2^6613990 is an apocalyptic number.

6613990 is a deficient number, since it is larger than the sum of its proper divisors (5326058).

6613990 is a wasteful number, since it uses less digits than its factorization.

6613990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6613990 is about 2571.7678744397. The cubic root of 6613990 is about 187.7101879944.

The spelling of 6613990 in words is "six million, six hundred thirteen thousand, nine hundred ninety".