5243890 has 8 divisors (see below), whose sum is σ = 9439020. Its totient is φ = 2097552.

The previous prime is 5243879. The next prime is 5243891. The reversal of 5243890 is 983425.

It can be written as a sum of positive squares in 2 ways, for example, as 5112121 + 131769 = 2261^2 + 363^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5243891) 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, 262185 + ... + 262204.

Almost surely, 2^5243890 is an apocalyptic number.

5243890 is a deficient number, since it is larger than the sum of its proper divisors (4195130).

5243890 is a wasteful number, since it uses less digits than its factorization.

5243890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524396.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 5243890 is about 2289.9541480126. The cubic root of 5243890 is about 173.7338821893.

The spelling of 5243890 in words is "five million, two hundred forty-three thousand, eight hundred ninety".