82707005 has 8 divisors (see below), whose sum is σ = 99298872. Its totient is φ = 66131968.

The previous prime is 82706993. The next prime is 82707007. The reversal of 82707005 is 50070728.

It can be written as a sum of positive squares in 4 ways, for example, as 33790969 + 48916036 = 5813^2 + 6994^2 .

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 82707005 - 2⁶ = 82706941 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 (82707007) 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, 13049 + ... + 18321.

It is an arithmetic number, because the mean of its divisors is an integer number (12412359).

Almost surely, 2^82707005 is an apocalyptic number.

It is an amenable number.

82707005 is a deficient number, since it is larger than the sum of its proper divisors (16591867).

82707005 is a wasteful number, since it uses less digits than its factorization.

82707005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8415.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 82707005 is about 9094.3391733539. The cubic root of 82707005 is about 435.6931829147.

The spelling of 82707005 in words is "eighty-two million, seven hundred seven thousand, five".