5091489 has 12 divisors (see below), whose sum is σ = 7920276. Its totient is φ = 3133152.

The previous prime is 5091473. The next prime is 5091491. The reversal of 5091489 is 9841905.

5091489 is a `hidden beast` number, since 509 + 148 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 216225 + 4875264 = 465^2 + 2208^2 .

It is not a de Polignac number, because 5091489 - 2⁴ = 5091473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5091589) 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, 21642 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (660023).

Almost surely, 2^5091489 is an apocalyptic number.

It is an amenable number.

5091489 is a deficient number, since it is larger than the sum of its proper divisors (2828787).

5091489 is a wasteful number, since it uses less digits than its factorization.

5091489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43536 (or 43533 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 5091489 is about 2256.4328042288. The cubic root of 5091489 is about 172.0342571931.

The spelling of 5091489 in words is "five million, ninety-one thousand, four hundred eighty-nine".