82765307 has 4 divisors (see below), whose sum is σ = 82799640. Its totient is φ = 82730976.

The previous prime is 82765303. The next prime is 82765313. The reversal of 82765307 is 70356728.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82765307 - 2² = 82765303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82765303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13253 + ... + 18470.

It is an arithmetic number, because the mean of its divisors is an integer number (20699910).

Almost surely, 2^82765307 is an apocalyptic number.

82765307 is a deficient number, since it is larger than the sum of its proper divisors (34333).

82765307 is a wasteful number, since it uses less digits than its factorization.

82765307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34332.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 82765307 is about 9097.5440092368. The cubic root of 82765307 is about 435.7955354604.

The spelling of 82765307 in words is "eighty-two million, seven hundred sixty-five thousand, three hundred seven".