83749829 has 2 divisors, whose sum is σ = 83749830. Its totient is φ = 83749828.

The previous prime is 83749811. The next prime is 83749843. The reversal of 83749829 is 92894738.

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., 45024100 + 38725729 = 6710^2 + 6223^2 .

It is a cyclic number.

It is not a de Polignac number, because 83749829 - 2¹² = 83745733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83749849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41874914 + 41874915.

It is an arithmetic number, because the mean of its divisors is an integer number (41874915).

Almost surely, 2^83749829 is an apocalyptic number.

It is an amenable number.

83749829 is a deficient number, since it is larger than the sum of its proper divisors (1).

83749829 is an equidigital number, since it uses as much as digits as its factorization.

83749829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 83749829 is about 9151.4932661288. The cubic root of 83749829 is about 437.5167083687.

The spelling of 83749829 in words is "eighty-three million, seven hundred forty-nine thousand, eight hundred twenty-nine".