65230639 has 2 divisors, whose sum is σ = 65230640. Its totient is φ = 65230638.

The previous prime is 65230619. The next prime is 65230679. The reversal of 65230639 is 93603256.

65230639 is nontrivially palindromic in base 4.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65230639 is a prime.

It is equal to p_3853339 and since 65230639 and 3853339 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65230609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32615319 + 32615320.

It is an arithmetic number, because the mean of its divisors is an integer number (32615320).

Almost surely, 2^65230639 is an apocalyptic number.

65230639 is a deficient number, since it is larger than the sum of its proper divisors (1).

65230639 is an equidigital number, since it uses as much as digits as its factorization.

65230639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 65230639 is about 8076.5487059758. The cubic root of 65230639 is about 402.5475715027.

The spelling of 65230639 in words is "sixty-five million, two hundred thirty thousand, six hundred thirty-nine".