82724773 has 4 divisors (see below), whose sum is σ = 82853280. Its totient is φ = 82596268.

The previous prime is 82724753. The next prime is 82724777. The reversal of 82724773 is 37742728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82724773 - 2¹³ = 82716581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82724777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63283 + ... + 64576.

It is an arithmetic number, because the mean of its divisors is an integer number (20713320).

Almost surely, 2^82724773 is an apocalyptic number.

It is an amenable number.

82724773 is a deficient number, since it is larger than the sum of its proper divisors (128507).

82724773 is a wasteful number, since it uses less digits than its factorization.

82724773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128506.

The product of its digits is 131712, while the sum is 40.

The square root of 82724773 is about 9095.3159923116. The cubic root of 82724773 is about 435.7243807646.

It can be divided in two parts, 827 and 24773, that added together give a square (25600 = 160²).

The spelling of 82724773 in words is "eighty-two million, seven hundred twenty-four thousand, seven hundred seventy-three".