67000049 has 2 divisors, whose sum is σ = 67000050. Its totient is φ = 67000048.

The previous prime is 67000033. The next prime is 67000069. The reversal of 67000049 is 94000076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 18447025 = 6968^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 67000049 - 2⁴ = 67000033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66999991 and 67000027.

It is not a weakly prime, because it can be changed into another prime (67000019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33500024 + 33500025.

It is an arithmetic number, because the mean of its divisors is an integer number (33500025).

Almost surely, 2^67000049 is an apocalyptic number.

It is an amenable number.

67000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

67000049 is an equidigital number, since it uses as much as digits as its factorization.

67000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 67000049 is about 8185.3557650233. The cubic root of 67000049 is about 406.1549090574.

The spelling of 67000049 in words is "sixty-seven million, forty-nine", and thus it is an aban number and an uban number.