83441509 has 2 divisors, whose sum is σ = 83441510. Its totient is φ = 83441508.

The previous prime is 83441503. The next prime is 83441551. The reversal of 83441509 is 90514438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79156609 + 4284900 = 8897^2 + 2070^2 .

It is a cyclic number.

It is not a de Polignac number, because 83441509 - 2¹⁹ = 82917221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83441503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41720754 + 41720755.

It is an arithmetic number, because the mean of its divisors is an integer number (41720755).

Almost surely, 2^83441509 is an apocalyptic number.

It is an amenable number.

83441509 is a deficient number, since it is larger than the sum of its proper divisors (1).

83441509 is an equidigital number, since it uses as much as digits as its factorization.

83441509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 83441509 is about 9134.6323954497. The cubic root of 83441509 is about 436.9791509445.

The spelling of 83441509 in words is "eighty-three million, four hundred forty-one thousand, five hundred nine".