97289537 has 2 divisors, whose sum is σ = 97289538. Its totient is φ = 97289536.

The previous prime is 97289513. The next prime is 97289567. The reversal of 97289537 is 73598279.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61481281 + 35808256 = 7841^2 + 5984^2 .

It is an emirp because it is prime and its reverse (73598279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97289537 - 2⁸ = 97289281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97289567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48644768 + 48644769.

It is an arithmetic number, because the mean of its divisors is an integer number (48644769).

Almost surely, 2^97289537 is an apocalyptic number.

It is an amenable number.

97289537 is a deficient number, since it is larger than the sum of its proper divisors (1).

97289537 is an equidigital number, since it uses as much as digits as its factorization.

97289537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 97289537 is about 9863.5458634307. The cubic root of 97289537 is about 459.9267952191.

It can be divided in two parts, 972 and 89537, that added together give a palindrome (90509).

The spelling of 97289537 in words is "ninety-seven million, two hundred eighty-nine thousand, five hundred thirty-seven".