82425279 has 8 divisors (see below), whose sum is σ = 113690160. Its totient is φ = 53055296.

The previous prime is 82425271. The next prime is 82425283. The reversal of 82425279 is 97252428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82425279 - 2³ = 82425271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82425271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473622 + ... + 473795.

It is an arithmetic number, because the mean of its divisors is an integer number (14211270).

Almost surely, 2^82425279 is an apocalyptic number.

82425279 is a deficient number, since it is larger than the sum of its proper divisors (31264881).

82425279 is a wasteful number, since it uses less digits than its factorization.

82425279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947449.

The product of its digits is 80640, while the sum is 39.

The square root of 82425279 is about 9078.8368748425. The cubic root of 82425279 is about 435.1979176000.

The spelling of 82425279 in words is "eighty-two million, four hundred twenty-five thousand, two hundred seventy-nine".