82739212 has 12 divisors (see below), whose sum is σ = 145530000. Its totient is φ = 41159216.

The previous prime is 82739191. The next prime is 82739213. The reversal of 82739212 is 21293728.

It is not an unprimeable number, because it can be changed into a prime (82739213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51712 + ... + 53287.

It is an arithmetic number, because the mean of its divisors is an integer number (12127500).

Almost surely, 2^82739212 is an apocalyptic number.

It is an amenable number.

82739212 is a deficient number, since it is larger than the sum of its proper divisors (62790788).

82739212 is a wasteful number, since it uses less digits than its factorization.

82739212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105200 (or 105198 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 82739212 is about 9096.1097178959. The cubic root of 82739212 is about 435.7497301172.

The spelling of 82739212 in words is "eighty-two million, seven hundred thirty-nine thousand, two hundred twelve".