82079751 has 24 divisors (see below), whose sum is σ = 119799120. Its totient is φ = 49959936.

The previous prime is 82079747. The next prime is 82079759. The reversal of 82079751 is 15797028.

It is not a de Polignac number, because 82079751 - 2² = 82079747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82079759) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 48345 + ... + 50013.

It is an arithmetic number, because the mean of its divisors is an integer number (4991630).

Almost surely, 2^82079751 is an apocalyptic number.

82079751 is a deficient number, since it is larger than the sum of its proper divisors (37719369).

82079751 is a wasteful number, since it uses less digits than its factorization.

82079751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 82079751 is about 9059.7875802913. The cubic root of 82079751 is about 434.5889471455.

The spelling of 82079751 in words is "eighty-two million, seventy-nine thousand, seven hundred fifty-one".