82365785 has 8 divisors (see below), whose sum is σ = 98896776. Its totient is φ = 65854080.

The previous prime is 82365757. The next prime is 82365839. The reversal of 82365785 is 58756328.

It can be written as a sum of positive squares in 4 ways, for example, as 24970009 + 57395776 = 4997^2 + 7576^2 .

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

It is not a de Polignac number, because 82365785 - 2⁶ = 82365721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7397 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (12362097).

Almost surely, 2^82365785 is an apocalyptic number.

It is an amenable number.

82365785 is a deficient number, since it is larger than the sum of its proper divisors (16530991).

82365785 is a wasteful number, since it uses less digits than its factorization.

82365785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9643.

The product of its digits is 403200, while the sum is 44.

The square root of 82365785 is about 9075.5597623507. The cubic root of 82365785 is about 435.0931847754.

The spelling of 82365785 in words is "eighty-two million, three hundred sixty-five thousand, seven hundred eighty-five".