83643394 has 8 divisors (see below), whose sum is σ = 129512448. Its totient is φ = 40472580.

The previous prime is 83643331. The next prime is 83643419. The reversal of 83643394 is 49334638.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674482 + ... + 674605.

It is an arithmetic number, because the mean of its divisors is an integer number (16189056).

Almost surely, 2^83643394 is an apocalyptic number.

83643394 is a deficient number, since it is larger than the sum of its proper divisors (45869054).

83643394 is a wasteful number, since it uses less digits than its factorization.

83643394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349120.

The product of its digits is 186624, while the sum is 40.

The square root of 83643394 is about 9145.6762461832. The cubic root of 83643394 is about 437.3312877645.

The spelling of 83643394 in words is "eighty-three million, six hundred forty-three thousand, three hundred ninety-four".