65297107 has 4 divisors (see below), whose sum is σ = 65320200. Its totient is φ = 65274016.

The previous prime is 65297093. The next prime is 65297131. The reversal of 65297107 is 70179256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65297107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65297137) 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, 6598 + ... + 13195.

It is an arithmetic number, because the mean of its divisors is an integer number (16330050).

Almost surely, 2^65297107 is an apocalyptic number.

65297107 is the 6598-th pentagonal number.

65297107 is a deficient number, since it is larger than the sum of its proper divisors (23093).

65297107 is a wasteful number, since it uses less digits than its factorization.

65297107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23092.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 65297107 is about 8080.6625347183. The cubic root of 65297107 is about 402.6842529227.

The spelling of 65297107 in words is "sixty-five million, two hundred ninety-seven thousand, one hundred seven".