4989591 has 12 divisors (see below), whose sum is σ = 7375368. Its totient is φ = 3248784.

The previous prime is 4989581. The next prime is 4989599. The reversal of 4989591 is 1959894.

It is not a de Polignac number, because 4989591 - 2⁷ = 4989463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6060 + ... + 6833.

It is an arithmetic number, because the mean of its divisors is an integer number (614614).

Almost surely, 2^4989591 is an apocalyptic number.

4989591 is a deficient number, since it is larger than the sum of its proper divisors (2385777).

4989591 is a wasteful number, since it uses less digits than its factorization.

4989591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942 (or 12939 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 4989591 is about 2233.7392417200. The cubic root of 4989591 is about 170.8788512987.

The spelling of 4989591 in words is "four million, nine hundred eighty-nine thousand, five hundred ninety-one".