65305969 has 4 divisors (see below), whose sum is σ = 65503600. Its totient is φ = 65108340.

The previous prime is 65305963. The next prime is 65305973. The reversal of 65305969 is 96950356.

It is a happy number.

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 65305969 - 2²³ = 56917361 is a prime.

It is a super-2 number, since 2×65305969² = 8529739174057922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65305963) 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, 98319 + ... + 98980.

It is an arithmetic number, because the mean of its divisors is an integer number (16375900).

Almost surely, 2^65305969 is an apocalyptic number.

It is an amenable number.

65305969 is a deficient number, since it is larger than the sum of its proper divisors (197631).

65305969 is a wasteful number, since it uses less digits than its factorization.

65305969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197630.

The product of its (nonzero) digits is 218700, while the sum is 43.

The square root of 65305969 is about 8081.2108622409. The cubic root of 65305969 is about 402.7024692806.

The spelling of 65305969 in words is "sixty-five million, three hundred five thousand, nine hundred sixty-nine".