65027749 has 2 divisors, whose sum is σ = 65027750. Its totient is φ = 65027748.

The previous prime is 65027741. The next prime is 65027777. The reversal of 65027749 is 94772056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36990724 + 28037025 = 6082^2 + 5295^2 .

It is a cyclic number.

It is not a de Polignac number, because 65027749 - 2³ = 65027741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65027741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32513874 + 32513875.

It is an arithmetic number, because the mean of its divisors is an integer number (32513875).

Almost surely, 2^65027749 is an apocalyptic number.

It is an amenable number.

65027749 is a deficient number, since it is larger than the sum of its proper divisors (1).

65027749 is an equidigital number, since it uses as much as digits as its factorization.

65027749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 65027749 is about 8063.9784845943. The cubic root of 65027749 is about 402.1297836774.

The spelling of 65027749 in words is "sixty-five million, twenty-seven thousand, seven hundred forty-nine".