8072765 has 4 divisors (see below), whose sum is σ = 9687324. Its totient is φ = 6458208.

The previous prime is 8072761. The next prime is 8072791. The reversal of 8072765 is 5672708.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2365444 + 5707321 = 1538^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 8072765 - 2² = 8072761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072761) 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, 807272 + ... + 807281.

It is an arithmetic number, because the mean of its divisors is an integer number (2421831).

Almost surely, 2^8072765 is an apocalyptic number.

It is an amenable number.

8072765 is a deficient number, since it is larger than the sum of its proper divisors (1614559).

8072765 is a wasteful number, since it uses less digits than its factorization.

8072765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614558.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 8072765 is about 2841.2611636384. The cubic root of 8072765 is about 200.6045457808.

The spelling of 8072765 in words is "eight million, seventy-two thousand, seven hundred sixty-five".