83661203 has 2 divisors, whose sum is σ = 83661204. Its totient is φ = 83661202.

The previous prime is 83661191. The next prime is 83661241. The reversal of 83661203 is 30216638.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83661203 - 2²² = 79466899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83661283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41830601 + 41830602.

It is an arithmetic number, because the mean of its divisors is an integer number (41830602).

Almost surely, 2^83661203 is an apocalyptic number.

83661203 is a deficient number, since it is larger than the sum of its proper divisors (1).

83661203 is an equidigital number, since it uses as much as digits as its factorization.

83661203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 83661203 is about 9146.6498238426. The cubic root of 83661203 is about 437.3623238087.

The spelling of 83661203 in words is "eighty-three million, six hundred sixty-one thousand, two hundred three".