82739993 has 16 divisors (see below), whose sum is σ = 99449856. Its totient is φ = 67301520.

The previous prime is 82739989. The next prime is 82740001. The reversal of 82739993 is 39993728.

It is a cyclic number.

It is not a de Polignac number, because 82739993 - 2² = 82739989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82739953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19130 + ... + 23052.

It is an arithmetic number, because the mean of its divisors is an integer number (6215616).

Almost surely, 2^82739993 is an apocalyptic number.

It is an amenable number.

82739993 is a deficient number, since it is larger than the sum of its proper divisors (16709863).

82739993 is a wasteful number, since it uses less digits than its factorization.

82739993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084.

The product of its digits is 734832, while the sum is 50.

The square root of 82739993 is about 9096.1526482354. The cubic root of 82739993 is about 435.7511011699.

The spelling of 82739993 in words is "eighty-two million, seven hundred thirty-nine thousand, nine hundred ninety-three".