4091964 has 24 divisors (see below), whose sum is σ = 9781968. Its totient is φ = 1330560.

The previous prime is 4091959. The next prime is 4091993. The reversal of 4091964 is 4691904.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667 + ... + 4650.

It is an arithmetic number, because the mean of its divisors is an integer number (407582).

Almost surely, 2^4091964 is an apocalyptic number.

It is an amenable number.

4091964 is an abundant number, since it is smaller than the sum of its proper divisors (5690004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4091964 is a wasteful number, since it uses less digits than its factorization.

4091964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365 (or 8363 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4091964 is about 2022.8603510870. The cubic root of 4091964 is about 159.9474306465.

The spelling of 4091964 in words is "four million, ninety-one thousand, nine hundred sixty-four".