65605097 has 2 divisors, whose sum is σ = 65605098. Its totient is φ = 65605096.

The previous prime is 65605093. The next prime is 65605117. The reversal of 65605097 is 79050656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60388441 + 5216656 = 7771^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 65605097 - 2² = 65605093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65605097.

It is not a weakly prime, because it can be changed into another prime (65605093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32802548 + 32802549.

It is an arithmetic number, because the mean of its divisors is an integer number (32802549).

Almost surely, 2^65605097 is an apocalyptic number.

It is an amenable number.

65605097 is a deficient number, since it is larger than the sum of its proper divisors (1).

65605097 is an equidigital number, since it uses as much as digits as its factorization.

65605097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 65605097 is about 8099.6973400245. The cubic root of 65605097 is about 403.3163801509.

The spelling of 65605097 in words is "sixty-five million, six hundred five thousand, ninety-seven".