8042287 has 4 divisors (see below), whose sum is σ = 8773416. Its totient is φ = 7311160.

The previous prime is 8042267. The next prime is 8042303. The reversal of 8042287 is 7822408.

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 8042287 - 2⁷ = 8042159 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 (8042267) 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, 365548 + ... + 365569.

It is an arithmetic number, because the mean of its divisors is an integer number (2193354).

Almost surely, 2^8042287 is an apocalyptic number.

8042287 is a deficient number, since it is larger than the sum of its proper divisors (731129).

8042287 is a wasteful number, since it uses less digits than its factorization.

8042287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731128.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 8042287 is about 2835.8926284329. The cubic root of 8042287 is about 200.3517725842.

The spelling of 8042287 in words is "eight million, forty-two thousand, two hundred eighty-seven".