83665031 has 2 divisors, whose sum is σ = 83665032. Its totient is φ = 83665030.

The previous prime is 83665027. The next prime is 83665061. The reversal of 83665031 is 13056638.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83665031 - 2² = 83665027 is a prime.

It is a super-2 number, since 2×83665031² = 13999674824461922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83665061) by changing a digit.

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 as a sum of consecutive naturals, namely, 41832515 + 41832516.

It is an arithmetic number, because the mean of its divisors is an integer number (41832516).

Almost surely, 2^83665031 is an apocalyptic number.

83665031 is a deficient number, since it is larger than the sum of its proper divisors (1).

83665031 is an equidigital number, since it uses as much as digits as its factorization.

83665031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 83665031 is about 9146.8590783941. The cubic root of 83665031 is about 437.3689943536.

The spelling of 83665031 in words is "eighty-three million, six hundred sixty-five thousand, thirty-one".