4491092389 has 4 divisors (see below), whose sum is σ = 5132677024. Its totient is φ = 3849507756.

The previous prime is 4491092383. The next prime is 4491092393. The reversal of 4491092389 is 9832901944.

4491092389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4491092389 - 2³ = 4491092381 is a prime.

It is a super-3 number, since 3×4491092389³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4491092381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320792307 + ... + 320792320.

It is an arithmetic number, because the mean of its divisors is an integer number (1283169256).

Almost surely, 2^4491092389 is an apocalyptic number.

It is an amenable number.

4491092389 is a deficient number, since it is larger than the sum of its proper divisors (641584635).

4491092389 is an equidigital number, since it uses as much as digits as its factorization.

4491092389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641584634.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 4491092389 is about 67015.6130241304. The cubic root of 4491092389 is about 1649.8735610490.

The spelling of 4491092389 in words is "four billion, four hundred ninety-one million, ninety-two thousand, three hundred eighty-nine".