83824669 has 2 divisors, whose sum is σ = 83824670. Its totient is φ = 83824668.

The previous prime is 83824649. The next prime is 83824687. The reversal of 83824669 is 96642838.

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., 67864644 + 15960025 = 8238^2 + 3995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83824669 is a prime.

It is a super-2 number, since 2×83824669² = 14053150265919122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83824619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41912334 + 41912335.

It is an arithmetic number, because the mean of its divisors is an integer number (41912335).

Almost surely, 2^83824669 is an apocalyptic number.

It is an amenable number.

83824669 is a deficient number, since it is larger than the sum of its proper divisors (1).

83824669 is an equidigital number, since it uses as much as digits as its factorization.

83824669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 46.

The square root of 83824669 is about 9155.5813032270. The cubic root of 83824669 is about 437.6469932193.

The spelling of 83824669 in words is "eighty-three million, eight hundred twenty-four thousand, six hundred sixty-nine".