67764113 has 2 divisors, whose sum is σ = 67764114. Its totient is φ = 67764112.

The previous prime is 67764079. The next prime is 67764121. The reversal of 67764113 is 31146776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54051904 + 13712209 = 7352^2 + 3703^2 .

It is a cyclic number.

It is not a de Polignac number, because 67764113 - 2¹⁸ = 67501969 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67764133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33882056 + 33882057.

It is an arithmetic number, because the mean of its divisors is an integer number (33882057).

Almost surely, 2^67764113 is an apocalyptic number.

It is an amenable number.

67764113 is a deficient number, since it is larger than the sum of its proper divisors (1).

67764113 is an equidigital number, since it uses as much as digits as its factorization.

67764113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 67764113 is about 8231.8960756317. The cubic root of 67764113 is about 407.6929980189.

The spelling of 67764113 in words is "sixty-seven million, seven hundred sixty-four thousand, one hundred thirteen".