82879429 has 2 divisors, whose sum is σ = 82879430. Its totient is φ = 82879428.

The previous prime is 82879397. The next prime is 82879441. The reversal of 82879429 is 92497828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 21178404 = 7855^2 + 4602^2 .

It is a cyclic number.

It is not a de Polignac number, because 82879429 - 2⁵ = 82879397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82879499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41439714 + 41439715.

It is an arithmetic number, because the mean of its divisors is an integer number (41439715).

Almost surely, 2^82879429 is an apocalyptic number.

It is an amenable number.

82879429 is a deficient number, since it is larger than the sum of its proper divisors (1).

82879429 is an equidigital number, since it uses as much as digits as its factorization.

82879429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The square root of 82879429 is about 9103.8139809642. The cubic root of 82879429 is about 435.9957442140.

The spelling of 82879429 in words is "eighty-two million, eight hundred seventy-nine thousand, four hundred twenty-nine".