65290769 has 2 divisors, whose sum is σ = 65290770. Its totient is φ = 65290768.

The previous prime is 65290759. The next prime is 65290807. The reversal of 65290769 is 96709256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 19254544 = 6785^2 + 4388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65290769 is a prime.

It is a super-2 number, since 2×65290769² = 8525769033222722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (65290759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32645384 + 32645385.

It is an arithmetic number, because the mean of its divisors is an integer number (32645385).

Almost surely, 2^65290769 is an apocalyptic number.

It is an amenable number.

65290769 is a deficient number, since it is larger than the sum of its proper divisors (1).

65290769 is an equidigital number, since it uses as much as digits as its factorization.

65290769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 65290769 is about 8080.2703543879. The cubic root of 65290769 is about 402.6712237830.

The spelling of 65290769 in words is "sixty-five million, two hundred ninety thousand, seven hundred sixty-nine".