83807897 has 2 divisors, whose sum is σ = 83807898. Its totient is φ = 83807896.

The previous prime is 83807873. The next prime is 83807921. The reversal of 83807897 is 79870838.

It is a balanced prime because it is at equal distance from previous prime (83807873) and next prime (83807921).

It can be written as a sum of positive squares in only one way, i.e., 65626201 + 18181696 = 8101^2 + 4264^2 .

It is a cyclic number.

It is not a de Polignac number, because 83807897 - 2⁸ = 83807641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83807827) 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, 41903948 + 41903949.

It is an arithmetic number, because the mean of its divisors is an integer number (41903949).

Almost surely, 2^83807897 is an apocalyptic number.

It is an amenable number.

83807897 is a deficient number, since it is larger than the sum of its proper divisors (1).

83807897 is an equidigital number, since it uses as much as digits as its factorization.

83807897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 83807897 is about 9154.6653133798. The cubic root of 83807897 is about 437.6178025086.

The spelling of 83807897 in words is "eighty-three million, eight hundred seven thousand, eight hundred ninety-seven".