4491669 has 16 divisors (see below), whose sum is σ = 7371392. Its totient is φ = 2369088.

The previous prime is 4491667. The next prime is 4491671. The reversal of 4491669 is 9661944.

It is an interprime number because it is at equal distance from previous prime (4491667) and next prime (4491671).

It is not a de Polignac number, because 4491669 - 2¹ = 4491667 is a prime.

It is a super-2 number, since 2×4491669² = 40350180811122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7954 + ... + 8499.

It is an arithmetic number, because the mean of its divisors is an integer number (460712).

Almost surely, 2^4491669 is an apocalyptic number.

It is an amenable number.

4491669 is a deficient number, since it is larger than the sum of its proper divisors (2879723).

4491669 is a wasteful number, since it uses less digits than its factorization.

4491669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16476.

The product of its digits is 46656, while the sum is 39.

The square root of 4491669 is about 2119.3557983501. The cubic root of 4491669 is about 164.9944167073.

The spelling of 4491669 in words is "four million, four hundred ninety-one thousand, six hundred sixty-nine".