5691990 has 16 divisors (see below), whose sum is σ = 13660848. Its totient is φ = 1517856.

The previous prime is 5691977. The next prime is 5692007. The reversal of 5691990 is 991965.

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 7 ways as a sum of consecutive naturals, for example, 94837 + ... + 94896.

It is an arithmetic number, because the mean of its divisors is an integer number (853803).

Almost surely, 2^5691990 is an apocalyptic number.

5691990 is an abundant number, since it is smaller than the sum of its proper divisors (7968858).

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

5691990 is a wasteful number, since it uses less digits than its factorization.

5691990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189743.

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 5691990 is about 2385.7891776098. The cubic root of 5691990 is about 178.5478847436.

The spelling of 5691990 in words is "five million, six hundred ninety-one thousand, nine hundred ninety".