82747973 has 8 divisors (see below), whose sum is σ = 103166400. Its totient is φ = 64478880.

The previous prime is 82747969. The next prime is 82748023. The reversal of 82747973 is 37974728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82747973 - 2² = 82747969 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 (82747943) 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 7 ways as a sum of consecutive naturals, for example, 537248 + ... + 537401.

It is an arithmetic number, because the mean of its divisors is an integer number (12895800).

Almost surely, 2^82747973 is an apocalyptic number.

It is an amenable number.

82747973 is a deficient number, since it is larger than the sum of its proper divisors (20418427).

82747973 is a wasteful number, since it uses less digits than its factorization.

82747973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074667.

The product of its digits is 592704, while the sum is 47.

The square root of 82747973 is about 9096.5912846516. The cubic root of 82747973 is about 435.7651096394.

The spelling of 82747973 in words is "eighty-two million, seven hundred forty-seven thousand, nine hundred seventy-three".