67961293 has 2 divisors, whose sum is σ = 67961294. Its totient is φ = 67961292.

The previous prime is 67961287. The next prime is 67961351. The reversal of 67961293 is 39216976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53846244 + 14115049 = 7338^2 + 3757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67961293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67961203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33980646 + 33980647.

It is an arithmetic number, because the mean of its divisors is an integer number (33980647).

Almost surely, 2^67961293 is an apocalyptic number.

It is an amenable number.

67961293 is a deficient number, since it is larger than the sum of its proper divisors (1).

67961293 is an equidigital number, since it uses as much as digits as its factorization.

67961293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 67961293 is about 8243.8639605467. The cubic root of 67961293 is about 408.0880500886.

The spelling of 67961293 in words is "sixty-seven million, nine hundred sixty-one thousand, two hundred ninety-three".