6111691 has 4 divisors (see below), whose sum is σ = 6155800. Its totient is φ = 6067584.

The previous prime is 6111689. The next prime is 6111709. The reversal of 6111691 is 1961116.

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 6111691 - 2¹ = 6111689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6111601) 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, 21846 + ... + 22123.

It is an arithmetic number, because the mean of its divisors is an integer number (1538950).

Almost surely, 2^6111691 is an apocalyptic number.

6111691 is a deficient number, since it is larger than the sum of its proper divisors (44109).

6111691 is a wasteful number, since it uses less digits than its factorization.

6111691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44108.

The product of its digits is 324, while the sum is 25.

The square root of 6111691 is about 2472.1834478857. The cubic root of 6111691 is about 182.8326677680.

The spelling of 6111691 in words is "six million, one hundred eleven thousand, six hundred ninety-one".