83009761 has 2 divisors, whose sum is σ = 83009762. Its totient is φ = 83009760.

The previous prime is 83009753. The next prime is 83009777. The reversal of 83009761 is 16790038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 7667361 = 8680^2 + 2769^2 .

It is a cyclic number.

It is not a de Polignac number, because 83009761 - 2³ = 83009753 is a prime.

It is not a weakly prime, because it can be changed into another prime (83009741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41504880 + 41504881.

It is an arithmetic number, because the mean of its divisors is an integer number (41504881).

Almost surely, 2^83009761 is an apocalyptic number.

It is an amenable number.

83009761 is a deficient number, since it is larger than the sum of its proper divisors (1).

83009761 is an equidigital number, since it uses as much as digits as its factorization.

83009761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 83009761 is about 9110.9692678661. The cubic root of 83009761 is about 436.2241661426.

Adding to 83009761 its reverse (16790038), we get a palindrome (99799799).

The spelling of 83009761 in words is "eighty-three million, nine thousand, seven hundred sixty-one".