82419705 has 24 divisors (see below), whose sum is σ = 143078208. Its totient is φ = 43890336.

The previous prime is 82419703. The next prime is 82419709. The reversal of 82419705 is 50791428.

It is not a de Polignac number, because 82419705 - 2¹ = 82419703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82419705.

It is not an unprimeable number, because it can be changed into a prime (82419703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46974 + ... + 48696.

It is an arithmetic number, because the mean of its divisors is an integer number (5961592).

Almost surely, 2^82419705 is an apocalyptic number.

It is an amenable number.

82419705 is a deficient number, since it is larger than the sum of its proper divisors (60658503).

82419705 is a wasteful number, since it uses less digits than its factorization.

82419705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 82419705 is about 9078.5298920034. The cubic root of 82419705 is about 435.1881073092.

The spelling of 82419705 in words is "eighty-two million, four hundred nineteen thousand, seven hundred five".