4091967 has 12 divisors (see below), whose sum is σ = 6448104. Its totient is φ = 2479920.

The previous prime is 4091959. The next prime is 4091993. The reversal of 4091967 is 7691904.

It is not a de Polignac number, because 4091967 - 2³ = 4091959 is a prime.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4091947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20568 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (537342).

Almost surely, 2^4091967 is an apocalyptic number.

4091967 is a deficient number, since it is larger than the sum of its proper divisors (2356137).

4091967 is a wasteful number, since it uses less digits than its factorization.

4091967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41350 (or 41347 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 4091967 is about 2022.8610926112. The cubic root of 4091967 is about 159.9474697346.

The spelling of 4091967 in words is "four million, ninety-one thousand, nine hundred sixty-seven".