6110991 has 16 divisors (see below), whose sum is σ = 9100800. Its totient is φ = 4052664.

The previous prime is 6110983. The next prime is 6111011. The reversal of 6110991 is 1990116.

It is not a de Polignac number, because 6110991 - 2³ = 6110983 is a prime.

It is a super-2 number, since 2×6110991² = 74688422004162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6110941) 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, 5980 + ... + 6926.

It is an arithmetic number, because the mean of its divisors is an integer number (568800).

Almost surely, 2^6110991 is an apocalyptic number.

6110991 is a deficient number, since it is larger than the sum of its proper divisors (2989809).

6110991 is a wasteful number, since it uses less digits than its factorization.

6110991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 6110991 is about 2472.0418685775. The cubic root of 6110991 is about 182.8256872801.

The spelling of 6110991 in words is "six million, one hundred ten thousand, nine hundred ninety-one".