5263987 has 4 divisors (see below), whose sum is σ = 5492880. Its totient is φ = 5035096.

The previous prime is 5263963. The next prime is 5263991. The reversal of 5263987 is 7893625.

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 5263987 - 2¹⁹ = 4739699 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5263997) 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, 114412 + ... + 114457.

It is an arithmetic number, because the mean of its divisors is an integer number (1373220).

Almost surely, 2^5263987 is an apocalyptic number.

5263987 is a deficient number, since it is larger than the sum of its proper divisors (228893).

5263987 is a wasteful number, since it uses less digits than its factorization.

5263987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228892.

The product of its digits is 90720, while the sum is 40.

The square root of 5263987 is about 2294.3380308926. The cubic root of 5263987 is about 173.9555419953.

The spelling of 5263987 in words is "five million, two hundred sixty-three thousand, nine hundred eighty-seven".