5287423 has 4 divisors (see below), whose sum is σ = 5292648. Its totient is φ = 5282200.

The previous prime is 5287393. The next prime is 5287427. The reversal of 5287423 is 3247825.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5287423 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5³ + 2¹⁸ + 8⁴ + 7⁷ + 4⁵ + 2²² + 3⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5287427) 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, 553 + ... + 3298.

It is an arithmetic number, because the mean of its divisors is an integer number (1323162).

Almost surely, 2^5287423 is an apocalyptic number.

5287423 is a deficient number, since it is larger than the sum of its proper divisors (5225).

5287423 is a wasteful number, since it uses less digits than its factorization.

5287423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its digits is 13440, while the sum is 31.

The square root of 5287423 is about 2299.4397143652. The cubic root of 5287423 is about 174.2133178858.

The spelling of 5287423 in words is "five million, two hundred eighty-seven thousand, four hundred twenty-three".