4091941921 has 8 divisors (see below), whose sum is σ = 4110311520. Its totient is φ = 4073591808.

The previous prime is 4091941879. The next prime is 4091941943. The reversal of 4091941921 is 1291491904.

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

It is a cyclic number.

It is not a de Polignac number, because 4091941921 - 2²⁷ = 3957724193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4091941121) 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, 556350 + ... + 563656.

It is an arithmetic number, because the mean of its divisors is an integer number (513788940).

Almost surely, 2^4091941921 is an apocalyptic number.

It is an amenable number.

4091941921 is a deficient number, since it is larger than the sum of its proper divisors (18369599).

4091941921 is a wasteful number, since it uses less digits than its factorization.

4091941921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 4091941921 is about 63968.2884013634. The cubic root of 4091941921 is about 1599.4714296995.

The spelling of 4091941921 in words is "four billion, ninety-one million, nine hundred forty-one thousand, nine hundred twenty-one".