83007765 has 12 divisors (see below), whose sum is σ = 143880204. Its totient is φ = 44270784.

The previous prime is 83007731. The next prime is 83007791. The reversal of 83007765 is 56770038.

It can be written as a sum of positive squares in 2 ways, for example, as 37970244 + 45037521 = 6162^2 + 6711^2 .

It is not a de Polignac number, because 83007765 - 2¹³ = 82999573 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 922264 + ... + 922353.

It is an arithmetic number, because the mean of its divisors is an integer number (11990017).

Almost surely, 2^83007765 is an apocalyptic number.

It is an amenable number.

83007765 is a deficient number, since it is larger than the sum of its proper divisors (60872439).

83007765 is a wasteful number, since it uses less digits than its factorization.

83007765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844628 (or 1844625 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 83007765 is about 9110.8597289169. The cubic root of 83007765 is about 436.2206697248.

The spelling of 83007765 in words is "eighty-three million, seven thousand, seven hundred sixty-five".