7268287 has 4 divisors (see below), whose sum is σ = 7827400. Its totient is φ = 6709176.

The previous prime is 7268267. The next prime is 7268297. The reversal of 7268287 is 7828627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7828627 = 19 ⋅412033.

It is a cyclic number.

It is not a de Polignac number, because 7268287 - 2⁷ = 7268159 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7268267) 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, 279537 + ... + 279562.

It is an arithmetic number, because the mean of its divisors is an integer number (1956850).

Almost surely, 2^7268287 is an apocalyptic number.

7268287 is a deficient number, since it is larger than the sum of its proper divisors (559113).

7268287 is a wasteful number, since it uses less digits than its factorization.

7268287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559112.

The product of its digits is 75264, while the sum is 40.

The square root of 7268287 is about 2695.9760755615. The cubic root of 7268287 is about 193.7064234985.

The spelling of 7268287 in words is "seven million, two hundred sixty-eight thousand, two hundred eighty-seven".