83730481 has 2 divisors, whose sum is σ = 83730482. Its totient is φ = 83730480.

The previous prime is 83730469. The next prime is 83730527. The reversal of 83730481 is 18403738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56010256 + 27720225 = 7484^2 + 5265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83730481 is a prime.

It is a super-2 number, since 2×83730481² = 14021586896982722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83730461) 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, 41865240 + 41865241.

It is an arithmetic number, because the mean of its divisors is an integer number (41865241).

Almost surely, 2^83730481 is an apocalyptic number.

It is an amenable number.

83730481 is a deficient number, since it is larger than the sum of its proper divisors (1).

83730481 is an equidigital number, since it uses as much as digits as its factorization.

83730481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 83730481 is about 9150.4361098256. The cubic root of 83730481 is about 437.4830138711.

The spelling of 83730481 in words is "eighty-three million, seven hundred thirty thousand, four hundred eighty-one".