65872879 has 2 divisors, whose sum is σ = 65872880. Its totient is φ = 65872878.

The previous prime is 65872843. The next prime is 65872883. The reversal of 65872879 is 97827856.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65872879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65872819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32936439 + 32936440.

It is an arithmetic number, because the mean of its divisors is an integer number (32936440).

Almost surely, 2^65872879 is an apocalyptic number.

65872879 is a deficient number, since it is larger than the sum of its proper divisors (1).

65872879 is an equidigital number, since it uses as much as digits as its factorization.

65872879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 52.

The square root of 65872879 is about 8116.2108770041. The cubic root of 65872879 is about 403.8643774908.

It can be divided in two parts, 658 and 72879, that added together give a palindrome (73537).

The spelling of 65872879 in words is "sixty-five million, eight hundred seventy-two thousand, eight hundred seventy-nine".