67945673 has 2 divisors, whose sum is σ = 67945674. Its totient is φ = 67945672.

The previous prime is 67945667. The next prime is 67945679. The reversal of 67945673 is 37654976.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (67945667) and next prime (67945679).

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 262144 = 8227^2 + 512^2 .

It is a cyclic number.

It is not a de Polignac number, because 67945673 - 2²⁰ = 66897097 is a prime.

It is a super-3 number, since 3×67945673³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (67945679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33972836 + 33972837.

It is an arithmetic number, because the mean of its divisors is an integer number (33972837).

Almost surely, 2^67945673 is an apocalyptic number.

It is an amenable number.

67945673 is a deficient number, since it is larger than the sum of its proper divisors (1).

67945673 is an equidigital number, since it uses as much as digits as its factorization.

67945673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 47.

The square root of 67945673 is about 8242.9165348195. The cubic root of 67945673 is about 408.0567831548.

The spelling of 67945673 in words is "sixty-seven million, nine hundred forty-five thousand, six hundred seventy-three".