65967697 has 4 divisors (see below), whose sum is σ = 66063856. Its totient is φ = 65871540.

The previous prime is 65967683. The next prime is 65967709. The reversal of 65967697 is 79676956.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65967697 - 2¹¹ = 65965649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65967997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47043 + ... + 48424.

It is an arithmetic number, because the mean of its divisors is an integer number (16515964).

Almost surely, 2^65967697 is an apocalyptic number.

It is an amenable number.

65967697 is a deficient number, since it is larger than the sum of its proper divisors (96159).

65967697 is an equidigital number, since it uses as much as digits as its factorization.

65967697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96158.

The product of its digits is 4286520, while the sum is 55.

The square root of 65967697 is about 8122.0500490947. The cubic root of 65967697 is about 404.0580599006.

The spelling of 65967697 in words is "sixty-five million, nine hundred sixty-seven thousand, six hundred ninety-seven".