7944287 has 16 divisors (see below), whose sum is σ = 9172800. Its totient is φ = 6815232.

The previous prime is 7944281. The next prime is 7944301. The reversal of 7944287 is 7824497.

It is not a de Polignac number, because 7944287 - 2¹⁰ = 7943263 is a prime.

It is a super-2 number, since 2×7944287² = 126223391876738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22589 + ... + 22937.

It is an arithmetic number, because the mean of its divisors is an integer number (573300).

Almost surely, 2^7944287 is an apocalyptic number.

7944287 is a deficient number, since it is larger than the sum of its proper divisors (1228513).

7944287 is a wasteful number, since it uses less digits than its factorization.

7944287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 112896, while the sum is 41.

The square root of 7944287 is about 2818.5611577541. The cubic root of 7944287 is about 199.5346430544.

The spelling of 7944287 in words is "seven million, nine hundred forty-four thousand, two hundred eighty-seven".