83653697 has 2 divisors, whose sum is σ = 83653698. Its totient is φ = 83653696.

The previous prime is 83653679. The next prime is 83653733. The reversal of 83653697 is 79635638.

Together with previous prime (83653679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69822736 + 13830961 = 8356^2 + 3719^2 .

It is a cyclic number.

It is not a de Polignac number, because 83653697 - 2⁸ = 83653441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83653597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41826848 + 41826849.

It is an arithmetic number, because the mean of its divisors is an integer number (41826849).

Almost surely, 2^83653697 is an apocalyptic number.

It is an amenable number.

83653697 is a deficient number, since it is larger than the sum of its proper divisors (1).

83653697 is an equidigital number, since it uses as much as digits as its factorization.

83653697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The square root of 83653697 is about 9146.2395004723. The cubic root of 83653697 is about 437.3492435131.

The spelling of 83653697 in words is "eighty-three million, six hundred fifty-three thousand, six hundred ninety-seven".