65671069 has 2 divisors, whose sum is σ = 65671070. Its totient is φ = 65671068.

The previous prime is 65671063. The next prime is 65671097. The reversal of 65671069 is 96017656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54022500 + 11648569 = 7350^2 + 3413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65671069 is a prime.

It is a super-2 number, since 2×65671069² = 8625378607205522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65671063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32835534 + 32835535.

It is an arithmetic number, because the mean of its divisors is an integer number (32835535).

Almost surely, 2^65671069 is an apocalyptic number.

It is an amenable number.

65671069 is a deficient number, since it is larger than the sum of its proper divisors (1).

65671069 is an equidigital number, since it uses as much as digits as its factorization.

65671069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 65671069 is about 8103.7688145702. The cubic root of 65671069 is about 403.4515255163.

The spelling of 65671069 in words is "sixty-five million, six hundred seventy-one thousand, sixty-nine".