6109691 has 8 divisors (see below), whose sum is σ = 7223520. Its totient is φ = 5056128.

The previous prime is 6109673. The next prime is 6109703. The reversal of 6109691 is 1969016.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6109691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6109601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14846 + ... + 15251.

It is an arithmetic number, because the mean of its divisors is an integer number (902940).

Almost surely, 2^6109691 is an apocalyptic number.

6109691 is a deficient number, since it is larger than the sum of its proper divisors (1113829).

6109691 is a wasteful number, since it uses less digits than its factorization.

6109691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30133.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 6109691 is about 2471.7789140617. The cubic root of 6109691 is about 182.8127221026.

It can be divided in two parts, 610 and 9691, that added together give a palindrome (10301).

The spelling of 6109691 in words is "six million, one hundred nine thousand, six hundred ninety-one".