4539491 has 8 divisors (see below), whose sum is σ = 4969200. Its totient is φ = 4112640.

The previous prime is 4539481. The next prime is 4539511. The reversal of 4539491 is 1949354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4539491 - 2⁶ = 4539427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4539481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3995 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (621150).

Almost surely, 2^4539491 is an apocalyptic number.

4539491 is a deficient number, since it is larger than the sum of its proper divisors (429709).

4539491 is a wasteful number, since it uses less digits than its factorization.

4539491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429.

The product of its digits is 19440, while the sum is 35.

The square root of 4539491 is about 2130.6081291500. The cubic root of 4539491 is about 165.5779062024.

The spelling of 4539491 in words is "four million, five hundred thirty-nine thousand, four hundred ninety-one".