82723379 has 4 divisors (see below), whose sum is σ = 84959184. Its totient is φ = 80487576.

The previous prime is 82723373. The next prime is 82723393. The reversal of 82723379 is 97332728.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82723379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82723373) 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, 1117847 + ... + 1117920.

It is an arithmetic number, because the mean of its divisors is an integer number (21239796).

Almost surely, 2^82723379 is an apocalyptic number.

82723379 is a deficient number, since it is larger than the sum of its proper divisors (2235805).

82723379 is a wasteful number, since it uses less digits than its factorization.

82723379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235804.

The product of its digits is 127008, while the sum is 41.

The square root of 82723379 is about 9095.2393591373. The cubic root of 82723379 is about 435.7219332784.

The spelling of 82723379 in words is "eighty-two million, seven hundred twenty-three thousand, three hundred seventy-nine".