4194591 has 4 divisors (see below), whose sum is σ = 5592792. Its totient is φ = 2796392.

The previous prime is 4194583. The next prime is 4194599. The reversal of 4194591 is 1954914.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4194583) and next prime (4194599).

It is a cyclic number.

It is not a de Polignac number, because 4194591 - 2³ = 4194583 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4194599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699096 + ... + 699101.

It is an arithmetic number, because the mean of its divisors is an integer number (1398198).

Almost surely, 2^4194591 is an apocalyptic number.

4194591 is a deficient number, since it is larger than the sum of its proper divisors (1398201).

4194591 is a wasteful number, since it uses less digits than its factorization.

4194591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398200.

The product of its digits is 6480, while the sum is 33.

The square root of 4194591 is about 2048.0700671608. The cubic root of 4194591 is about 161.2735726610.

The spelling of 4194591 in words is "four million, one hundred ninety-four thousand, five hundred ninety-one".