82409394 has 8 divisors (see below), whose sum is σ = 164818800. Its totient is φ = 27469796.

The previous prime is 82409389. The next prime is 82409407. The reversal of 82409394 is 49390428.

It is a sphenic number, since it is the product of 3 distinct primes.

82409394 is an admirable number.

It is a Curzon 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, 6867444 + ... + 6867455.

It is an arithmetic number, because the mean of its divisors is an integer number (20602350).

Almost surely, 2^82409394 is an apocalyptic number.

82409394 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.

82409394 is a wasteful number, since it uses less digits than its factorization.

82409394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734904.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 82409394 is about 9077.9619959548. The cubic root of 82409394 is about 435.1699586892.

The spelling of 82409394 in words is "eighty-two million, four hundred nine thousand, three hundred ninety-four".