8040287 has 4 divisors (see below), whose sum is σ = 8463480. Its totient is φ = 7617096.

The previous prime is 8040257. The next prime is 8040311. The reversal of 8040287 is 7820408.

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 8040287 - 2²⁰ = 6991711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211568 + ... + 211605.

It is an arithmetic number, because the mean of its divisors is an integer number (2115870).

Almost surely, 2^8040287 is an apocalyptic number.

8040287 is a deficient number, since it is larger than the sum of its proper divisors (423193).

8040287 is a wasteful number, since it uses less digits than its factorization.

8040287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423192.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 8040287 is about 2835.5399838479. The cubic root of 8040287 is about 200.3351630150.

The spelling of 8040287 in words is "eight million, forty thousand, two hundred eighty-seven".