7878283 has 4 divisors (see below), whose sum is σ = 9003760. Its totient is φ = 6752808.

The previous prime is 7878271. The next prime is 7878289. The reversal of 7878283 is 3828787.

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 7878283 - 2⁵ = 7878251 is a prime.

It is a Duffinian number.

7878283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7878289) 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, 562728 + ... + 562741.

It is an arithmetic number, because the mean of its divisors is an integer number (2250940).

Almost surely, 2^7878283 is an apocalyptic number.

7878283 is a deficient number, since it is larger than the sum of its proper divisors (1125477).

7878283 is a wasteful number, since it uses less digits than its factorization.

7878283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125476.

The product of its digits is 150528, while the sum is 43.

The square root of 7878283 is about 2806.8279249003. The cubic root of 7878283 is about 198.9805036328.

The spelling of 7878283 in words is "seven million, eight hundred seventy-eight thousand, two hundred eighty-three".