65798437 has 2 divisors, whose sum is σ = 65798438. Its totient is φ = 65798436.

The previous prime is 65798429. The next prime is 65798459. The reversal of 65798437 is 73489756.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64786401 + 1012036 = 8049^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 65798437 - 2³ = 65798429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65798417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32899218 + 32899219.

It is an arithmetic number, because the mean of its divisors is an integer number (32899219).

Almost surely, 2^65798437 is an apocalyptic number.

It is an amenable number.

65798437 is a deficient number, since it is larger than the sum of its proper divisors (1).

65798437 is an equidigital number, since it uses as much as digits as its factorization.

65798437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 65798437 is about 8111.6235736134. The cubic root of 65798437 is about 403.7121863579.

The spelling of 65798437 in words is "sixty-five million, seven hundred ninety-eight thousand, four hundred thirty-seven".