6711990 has 32 divisors (see below), whose sum is σ = 16195680. Its totient is φ = 1780224.

The previous prime is 6711989. The next prime is 6712007. The reversal of 6711990 is 991176.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6382 + ... + 7358.

It is an arithmetic number, because the mean of its divisors is an integer number (506115).

Almost surely, 2^6711990 is an apocalyptic number.

6711990 is an abundant number, since it is smaller than the sum of its proper divisors (9483690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6711990 is a wasteful number, since it uses less digits than its factorization.

6711990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 6711990 is about 2590.7508564121. The cubic root of 6711990 is about 188.6327517662.

The spelling of 6711990 in words is "six million, seven hundred eleven thousand, nine hundred ninety".