82129796 has 24 divisors (see below), whose sum is σ = 164451840. Its totient is φ = 35157312.

The previous prime is 82129793. The next prime is 82129841. The reversal of 82129796 is 69792128.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82129793) 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, 44141 + ... + 45963.

It is an arithmetic number, because the mean of its divisors is an integer number (6852160).

Almost surely, 2^82129796 is an apocalyptic number.

It is an amenable number.

82129796 is an abundant number, since it is smaller than the sum of its proper divisors (82322044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82129796 is a wasteful number, since it uses less digits than its factorization.

82129796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443 (or 3441 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 82129796 is about 9062.5490895222. The cubic root of 82129796 is about 434.6772538833.

The spelling of 82129796 in words is "eighty-two million, one hundred twenty-nine thousand, seven hundred ninety-six".