3846991 has 2 divisors, whose sum is σ = 3846992. Its totient is φ = 3846990.

The previous prime is 3846961. The next prime is 3847013. The reversal of 3846991 is 1996483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3846991 - 2⁷ = 3846863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3846961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923495 + 1923496.

It is an arithmetic number, because the mean of its divisors is an integer number (1923496).

Almost surely, 2^3846991 is an apocalyptic number.

3846991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3846991 is an equidigital number, since it uses as much as digits as its factorization.

3846991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 3846991 is about 1961.3747729590. The cubic root of 3846991 is about 156.6896787282.

The spelling of 3846991 in words is "three million, eight hundred forty-six thousand, nine hundred ninety-one".