7882279 has 4 divisors (see below), whose sum is σ = 7907776. Its totient is φ = 7856784.

The previous prime is 7882267. The next prime is 7882289. The reversal of 7882279 is 9722887.

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 7882279 - 2⁵ = 7882247 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 (7882219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12279 + ... + 12904.

It is an arithmetic number, because the mean of its divisors is an integer number (1976944).

Almost surely, 2^7882279 is an apocalyptic number.

7882279 is a deficient number, since it is larger than the sum of its proper divisors (25497).

7882279 is a wasteful number, since it uses less digits than its factorization.

7882279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25496.

The product of its digits is 112896, while the sum is 43.

The square root of 7882279 is about 2807.5396702451. The cubic root of 7882279 is about 199.0141400523.

The spelling of 7882279 in words is "seven million, eight hundred eighty-two thousand, two hundred seventy-nine".