5689606991 has 4 divisors (see below), whose sum is σ = 5936981232. Its totient is φ = 5442232752.

The previous prime is 5689606987. The next prime is 5689606999. The reversal of 5689606991 is 1996069865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5689606991 - 2² = 5689606987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5689606991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5689606999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123687086 + ... + 123687131.

It is an arithmetic number, because the mean of its divisors is an integer number (1484245308).

Almost surely, 2^5689606991 is an apocalyptic number.

5689606991 is a deficient number, since it is larger than the sum of its proper divisors (247374241).

5689606991 is a wasteful number, since it uses less digits than its factorization.

5689606991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247374240.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 5689606991 is about 75429.4835657782. The cubic root of 5689606991 is about 1785.2296430820.

The spelling of 5689606991 in words is "five billion, six hundred eighty-nine million, six hundred six thousand, nine hundred ninety-one".