65667233 has 2 divisors, whose sum is σ = 65667234. Its totient is φ = 65667232.

The previous prime is 65667229. The next prime is 65667253. The reversal of 65667233 is 33276656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57274624 + 8392609 = 7568^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 65667233 - 2² = 65667229 is a prime.

It is equal to p_3877571 and since 65667233 and 3877571 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (65667253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32833616 + 32833617.

It is an arithmetic number, because the mean of its divisors is an integer number (32833617).

Almost surely, 2^65667233 is an apocalyptic number.

It is an amenable number.

65667233 is a deficient number, since it is larger than the sum of its proper divisors (1).

65667233 is an equidigital number, since it uses as much as digits as its factorization.

65667233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 38.

The square root of 65667233 is about 8103.5321311142. The cubic root of 65667233 is about 403.4436698491.

The spelling of 65667233 in words is "sixty-five million, six hundred sixty-seven thousand, two hundred thirty-three".