67042973 has 2 divisors, whose sum is σ = 67042974. Its totient is φ = 67042972.

The previous prime is 67042949. The next prime is 67042979. The reversal of 67042973 is 37924076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59876644 + 7166329 = 7738^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 67042973 - 2⁶ = 67042909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67042979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33521486 + 33521487.

It is an arithmetic number, because the mean of its divisors is an integer number (33521487).

Almost surely, 2^67042973 is an apocalyptic number.

It is an amenable number.

67042973 is a deficient number, since it is larger than the sum of its proper divisors (1).

67042973 is an equidigital number, since it uses as much as digits as its factorization.

67042973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 67042973 is about 8187.9773448636. The cubic root of 67042973 is about 406.2416257682.

The spelling of 67042973 in words is "sixty-seven million, forty-two thousand, nine hundred seventy-three".