65267749 has 2 divisors, whose sum is σ = 65267750. Its totient is φ = 65267748.

The previous prime is 65267689. The next prime is 65267779. The reversal of 65267749 is 94776256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60730849 + 4536900 = 7793^2 + 2130^2 .

It is a cyclic number.

It is not a de Polignac number, because 65267749 - 2¹⁷ = 65136677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65267699 and 65267708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65267779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32633874 + 32633875.

It is an arithmetic number, because the mean of its divisors is an integer number (32633875).

Almost surely, 2^65267749 is an apocalyptic number.

It is an amenable number.

65267749 is a deficient number, since it is larger than the sum of its proper divisors (1).

65267749 is an equidigital number, since it uses as much as digits as its factorization.

65267749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 65267749 is about 8078.8457715196. The cubic root of 65267749 is about 402.6238940644.

The spelling of 65267749 in words is "sixty-five million, two hundred sixty-seven thousand, seven hundred forty-nine".