67416761 has 2 divisors, whose sum is σ = 67416762. Its totient is φ = 67416760.

The previous prime is 67416737. The next prime is 67416787. The reversal of 67416761 is 16761476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66324736 + 1092025 = 8144^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 67416761 - 2¹⁸ = 67154617 is a prime.

It is a super-2 number, since 2×67416761² = 9090039327462242, which contains 22 as substring.

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

It is equal to p_3974942 and since 67416761 and 3974942 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 (67416961) 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, 33708380 + 33708381.

It is an arithmetic number, because the mean of its divisors is an integer number (33708381).

Almost surely, 2^67416761 is an apocalyptic number.

It is an amenable number.

67416761 is a deficient number, since it is larger than the sum of its proper divisors (1).

67416761 is an equidigital number, since it uses as much as digits as its factorization.

67416761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 67416761 is about 8210.7710356580. The cubic root of 67416761 is about 406.9952066759.

The spelling of 67416761 in words is "sixty-seven million, four hundred sixteen thousand, seven hundred sixty-one".