4017491 has 4 divisors (see below), whose sum is σ = 4253832. Its totient is φ = 3781152.

The previous prime is 4017463. The next prime is 4017499. The reversal of 4017491 is 1947104.

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

It is a cyclic number.

It is not a de Polignac number, because 4017491 - 2⁶ = 4017427 is a prime.

It is a super-2 number, since 2×4017491² = 32280467870162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4017491.

It is not an unprimeable number, because it can be changed into a prime (4017499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118145 + ... + 118178.

It is an arithmetic number, because the mean of its divisors is an integer number (1063458).

Almost surely, 2^4017491 is an apocalyptic number.

4017491 is a deficient number, since it is larger than the sum of its proper divisors (236341).

4017491 is a wasteful number, since it uses less digits than its factorization.

4017491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236340.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 4017491 is about 2004.3679801873. The cubic root of 4017491 is about 158.9711456942.

The spelling of 4017491 in words is "four million, seventeen thousand, four hundred ninety-one".