83679481 has 2 divisors, whose sum is σ = 83679482. Its totient is φ = 83679480.

The previous prime is 83679469. The next prime is 83679487. The reversal of 83679481 is 18497638.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82973881 + 705600 = 9109^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 83679481 - 2⁷ = 83679353 is a prime.

It is a super-2 number, since 2×83679481² = 14004511080858722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83679487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41839740 + 41839741.

It is an arithmetic number, because the mean of its divisors is an integer number (41839741).

Almost surely, 2^83679481 is an apocalyptic number.

It is an amenable number.

83679481 is a deficient number, since it is larger than the sum of its proper divisors (1).

83679481 is an equidigital number, since it uses as much as digits as its factorization.

83679481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 83679481 is about 9147.6489329226. The cubic root of 83679481 is about 437.3941726074.

The spelling of 83679481 in words is "eighty-three million, six hundred seventy-nine thousand, four hundred eighty-one".