97535639 has 2 divisors, whose sum is σ = 97535640. Its totient is φ = 97535638.

The previous prime is 97535629. The next prime is 97535687. The reversal of 97535639 is 93653579.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97535639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97535593 and 97535602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97535629) 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, 48767819 + 48767820.

It is an arithmetic number, because the mean of its divisors is an integer number (48767820).

Almost surely, 2^97535639 is an apocalyptic number.

97535639 is a deficient number, since it is larger than the sum of its proper divisors (1).

97535639 is an equidigital number, since it uses as much as digits as its factorization.

97535639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 765450, while the sum is 47.

The square root of 97535639 is about 9876.0133150984. The cubic root of 97535639 is about 460.3142764128.

The spelling of 97535639 in words is "ninety-seven million, five hundred thirty-five thousand, six hundred thirty-nine".