65633741 has 2 divisors, whose sum is σ = 65633742. Its totient is φ = 65633740.

The previous prime is 65633731. The next prime is 65633759. The reversal of 65633741 is 14733656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55071241 + 10562500 = 7421^2 + 3250^2 .

It is a cyclic number.

It is not a de Polignac number, because 65633741 - 2²² = 61439437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65633731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32816870 + 32816871.

It is an arithmetic number, because the mean of its divisors is an integer number (32816871).

Almost surely, 2^65633741 is an apocalyptic number.

It is an amenable number.

65633741 is a deficient number, since it is larger than the sum of its proper divisors (1).

65633741 is an equidigital number, since it uses as much as digits as its factorization.

65633741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 35.

The square root of 65633741 is about 8101.4653612788. The cubic root of 65633741 is about 403.3750692568.

The spelling of 65633741 in words is "sixty-five million, six hundred thirty-three thousand, seven hundred forty-one".