4537889 has 4 divisors (see below), whose sum is σ = 4545840. Its totient is φ = 4529940.

The previous prime is 4537853. The next prime is 4537909. The reversal of 4537889 is 9887354.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9887354 = 2 ⋅4943677.

It is a cyclic number.

It is not a de Polignac number, because 4537889 - 2⁸ = 4537633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4537189) 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, 3047 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (1136460).

Almost surely, 2^4537889 is an apocalyptic number.

It is an amenable number.

4537889 is a deficient number, since it is larger than the sum of its proper divisors (7951).

4537889 is an equidigital number, since it uses as much as digits as its factorization.

4537889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950.

The product of its digits is 241920, while the sum is 44.

The square root of 4537889 is about 2130.2321469737. The cubic root of 4537889 is about 165.5584262640.

The spelling of 4537889 in words is "four million, five hundred thirty-seven thousand, eight hundred eighty-nine".