67687441 has 2 divisors, whose sum is σ = 67687442. Its totient is φ = 67687440.

The previous prime is 67687423. The next prime is 67687457. The reversal of 67687441 is 14478676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 14470416 = 7295^2 + 3804^2 .

It is a cyclic number.

It is not a de Polignac number, because 67687441 - 2⁵ = 67687409 is a prime.

It is not a weakly prime, because it can be changed into another prime (67682441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33843720 + 33843721.

It is an arithmetic number, because the mean of its divisors is an integer number (33843721).

Almost surely, 2^67687441 is an apocalyptic number.

It is an amenable number.

67687441 is a deficient number, since it is larger than the sum of its proper divisors (1).

67687441 is an equidigital number, since it uses as much as digits as its factorization.

67687441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 43.

The square root of 67687441 is about 8227.2377503023. The cubic root of 67687441 is about 407.5391779864.

The spelling of 67687441 in words is "sixty-seven million, six hundred eighty-seven thousand, four hundred forty-one".