67916501 has 2 divisors, whose sum is σ = 67916502. Its totient is φ = 67916500.

The previous prime is 67916489. The next prime is 67916509. The reversal of 67916501 is 10561976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50268100 + 17648401 = 7090^2 + 4201^2 .

It is a cyclic number.

It is not a de Polignac number, because 67916501 - 2⁶ = 67916437 is a prime.

It is a super-2 number, since 2×67916501² = 9225302216166002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67916509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33958250 + 33958251.

It is an arithmetic number, because the mean of its divisors is an integer number (33958251).

Almost surely, 2^67916501 is an apocalyptic number.

It is an amenable number.

67916501 is a deficient number, since it is larger than the sum of its proper divisors (1).

67916501 is an equidigital number, since it uses as much as digits as its factorization.

67916501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 67916501 is about 8241.1468255334. The cubic root of 67916501 is about 407.9983760188.

The spelling of 67916501 in words is "sixty-seven million, nine hundred sixteen thousand, five hundred one".