5691686 has 32 divisors (see below), whose sum is σ = 11467008. Its totient is φ = 2046240.

The previous prime is 5691667. The next prime is 5691689. The reversal of 5691686 is 6861965.

5691686 = 305² + 306² + ... + 356².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5691689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 581 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (358344).

Almost surely, 2^5691686 is an apocalyptic number.

5691686 is an abundant number, since it is smaller than the sum of its proper divisors (5775322).

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

5691686 is a wasteful number, since it uses less digits than its factorization.

5691686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its digits is 77760, while the sum is 41.

The square root of 5691686 is about 2385.7254661842. The cubic root of 5691686 is about 178.5447060356.

The spelling of 5691686 in words is "five million, six hundred ninety-one thousand, six hundred eighty-six".