83685929 has 2 divisors, whose sum is σ = 83685930. Its totient is φ = 83685928.

The previous prime is 83685919. The next prime is 83685947. The reversal of 83685929 is 92958638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83685904 + 25 = 9148^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 83685929 - 2⁴ = 83685913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83685919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41842964 + 41842965.

It is an arithmetic number, because the mean of its divisors is an integer number (41842965).

Almost surely, 2^83685929 is an apocalyptic number.

It is an amenable number.

83685929 is a deficient number, since it is larger than the sum of its proper divisors (1).

83685929 is an equidigital number, since it uses as much as digits as its factorization.

83685929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 50.

The square root of 83685929 is about 9148.0013664188. The cubic root of 83685929 is about 437.4054069234.

The spelling of 83685929 in words is "eighty-three million, six hundred eighty-five thousand, nine hundred twenty-nine".