67705541 has 2 divisors, whose sum is σ = 67705542. Its totient is φ = 67705540.

The previous prime is 67705511. The next prime is 67705567. The reversal of 67705541 is 14550776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42954916 + 24750625 = 6554^2 + 4975^2 .

It is a cyclic number.

It is not a de Polignac number, because 67705541 - 2¹⁴ = 67689157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67705501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33852770 + 33852771.

It is an arithmetic number, because the mean of its divisors is an integer number (33852771).

Almost surely, 2^67705541 is an apocalyptic number.

It is an amenable number.

67705541 is a deficient number, since it is larger than the sum of its proper divisors (1).

67705541 is an equidigital number, since it uses as much as digits as its factorization.

67705541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 67705541 is about 8228.3376814518. The cubic root of 67705541 is about 407.5755008335.

The spelling of 67705541 in words is "sixty-seven million, seven hundred five thousand, five hundred forty-one".