67896761 has 2 divisors, whose sum is σ = 67896762. Its totient is φ = 67896760.

The previous prime is 67896749. The next prime is 67896781. The reversal of 67896761 is 16769876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61136761 + 6760000 = 7819^2 + 2600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67896761 is a prime.

It is a super-2 number, since 2×67896761² = 9219940308582242, which contains 22 as substring.

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

It is not a weakly prime, because it can be changed into another prime (67896701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33948380 + 33948381.

It is an arithmetic number, because the mean of its divisors is an integer number (33948381).

Almost surely, 2^67896761 is an apocalyptic number.

It is an amenable number.

67896761 is a deficient number, since it is larger than the sum of its proper divisors (1).

67896761 is an equidigital number, since it uses as much as digits as its factorization.

67896761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 50.

The square root of 67896761 is about 8239.9490896486. The cubic root of 67896761 is about 407.9588438077.

The spelling of 67896761 in words is "sixty-seven million, eight hundred ninety-six thousand, seven hundred sixty-one".