83240849 has 2 divisors, whose sum is σ = 83240850. Its totient is φ = 83240848.

The previous prime is 83240831. The next prime is 83240863. The reversal of 83240849 is 94804238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75777025 + 7463824 = 8705^2 + 2732^2 .

It is a cyclic number.

It is not a de Polignac number, because 83240849 - 2²⁴ = 66463633 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83240809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41620424 + 41620425.

It is an arithmetic number, because the mean of its divisors is an integer number (41620425).

Almost surely, 2^83240849 is an apocalyptic number.

It is an amenable number.

83240849 is a deficient number, since it is larger than the sum of its proper divisors (1).

83240849 is an equidigital number, since it uses as much as digits as its factorization.

83240849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 83240849 is about 9123.6423099549. The cubic root of 83240849 is about 436.6285875411.

The spelling of 83240849 in words is "eighty-three million, two hundred forty thousand, eight hundred forty-nine".