83896661 has 2 divisors, whose sum is σ = 83896662. Its totient is φ = 83896660.

The previous prime is 83896639. The next prime is 83896691. The reversal of 83896661 is 16669838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50140561 + 33756100 = 7081^2 + 5810^2 .

It is a cyclic number.

It is not a de Polignac number, because 83896661 - 2⁶ = 83896597 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83896621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41948330 + 41948331.

It is an arithmetic number, because the mean of its divisors is an integer number (41948331).

Almost surely, 2^83896661 is an apocalyptic number.

It is an amenable number.

83896661 is a deficient number, since it is larger than the sum of its proper divisors (1).

83896661 is an equidigital number, since it uses as much as digits as its factorization.

83896661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 83896661 is about 9159.5120503223. The cubic root of 83896661 is about 437.7722469867.

The spelling of 83896661 in words is "eighty-three million, eight hundred ninety-six thousand, six hundred sixty-one".