5291287 has 4 divisors (see below), whose sum is σ = 5309640. Its totient is φ = 5272936.

The previous prime is 5291281. The next prime is 5291303. The reversal of 5291287 is 7821925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5291287 - 2¹⁹ = 4766999 is a prime.

It is a super-3 number, since 3×5291287³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

5291287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291281) 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, 8737 + ... + 9322.

It is an arithmetic number, because the mean of its divisors is an integer number (1327410).

Almost surely, 2^5291287 is an apocalyptic number.

5291287 is a deficient number, since it is larger than the sum of its proper divisors (18353).

5291287 is a wasteful number, since it uses less digits than its factorization.

5291287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18352.

The product of its digits is 10080, while the sum is 34.

The square root of 5291287 is about 2300.2797655937. The cubic root of 5291287 is about 174.2557453814.

The spelling of 5291287 in words is "five million, two hundred ninety-one thousand, two hundred eighty-seven".