82715723 has 4 divisors (see below), whose sum is σ = 84475680. Its totient is φ = 80955768.

The previous prime is 82715701. The next prime is 82715729. The reversal of 82715723 is 32751728.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82715723 - 2⁸ = 82715467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82715729) 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 3 ways as a sum of consecutive naturals, for example, 879908 + ... + 880001.

It is an arithmetic number, because the mean of its divisors is an integer number (21118920).

Almost surely, 2^82715723 is an apocalyptic number.

82715723 is a deficient number, since it is larger than the sum of its proper divisors (1759957).

82715723 is a wasteful number, since it uses less digits than its factorization.

82715723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759956.

The product of its digits is 23520, while the sum is 35.

The square root of 82715723 is about 9094.8184698761. The cubic root of 82715723 is about 435.7084909277.

It can be divided in two parts, 82715 and 723, that added together give a palindrome (83438).

The spelling of 82715723 in words is "eighty-two million, seven hundred fifteen thousand, seven hundred twenty-three".