5691611 has 4 divisors (see below), whose sum is σ = 5710224. Its totient is φ = 5673000.

The previous prime is 5691601. The next prime is 5691613. The reversal of 5691611 is 1161965.

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 5691611 - 2⁶ = 5691547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5691613) 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, 8840 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (1427556).

Almost surely, 2^5691611 is an apocalyptic number.

5691611 is a deficient number, since it is larger than the sum of its proper divisors (18613).

5691611 is a wasteful number, since it uses less digits than its factorization.

5691611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18612.

The product of its digits is 1620, while the sum is 29.

The square root of 5691611 is about 2385.7097476432. The cubic root of 5691611 is about 178.5439217974.

The spelling of 5691611 in words is "five million, six hundred ninety-one thousand, six hundred eleven".