67081293 has 6 divisors (see below), whose sum is σ = 96895214. Its totient is φ = 44720856.

The previous prime is 67081283. The next prime is 67081309. The reversal of 67081293 is 39218076.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 544644 = 8157^2 + 738^2 .

It is not a de Polignac number, because 67081293 - 2⁹ = 67080781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67081213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3726730 + ... + 3726747.

Almost surely, 2^67081293 is an apocalyptic number.

It is an amenable number.

67081293 is a deficient number, since it is larger than the sum of its proper divisors (29813921).

67081293 is a wasteful number, since it uses less digits than its factorization.

67081293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453483 (or 7453480 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 67081293 is about 8190.3170268311. The cubic root of 67081293 is about 406.3190100359.

It can be divided in two parts, 6708 and 1293, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 67081293 in words is "sixty-seven million, eighty-one thousand, two hundred ninety-three".