82729388 has 12 divisors (see below), whose sum is σ = 165458832. Its totient is φ = 35455440.

The previous prime is 82729379. The next prime is 82729441. The reversal of 82729388 is 88392728.

82729388 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477283 + ... + 1477338.

It is an arithmetic number, because the mean of its divisors is an integer number (13788236).

Almost surely, 2^82729388 is an apocalyptic number.

It is an amenable number.

82729388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82729388 is a wasteful number, since it uses less digits than its factorization.

82729388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954632 (or 2954630 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 82729388 is about 9095.5696907890. The cubic root of 82729388 is about 435.7324832573.

The spelling of 82729388 in words is "eighty-two million, seven hundred twenty-nine thousand, three hundred eighty-eight".