67610761 has 2 divisors, whose sum is σ = 67610762. Its totient is φ = 67610760.

The previous prime is 67610743. The next prime is 67610779. The reversal of 67610761 is 16701676.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (67610743) and next prime (67610779).

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 17640000 = 7069^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 67610761 - 2⁷ = 67610633 is a prime.

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 (67610791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33805380 + 33805381.

It is an arithmetic number, because the mean of its divisors is an integer number (33805381).

Almost surely, 2^67610761 is an apocalyptic number.

It is an amenable number.

67610761 is a deficient number, since it is larger than the sum of its proper divisors (1).

67610761 is an equidigital number, since it uses as much as digits as its factorization.

67610761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 67610761 is about 8222.5762994332. The cubic root of 67610761 is about 407.3852256838.

The spelling of 67610761 in words is "sixty-seven million, six hundred ten thousand, seven hundred sixty-one".