67432993 has 2 divisors, whose sum is σ = 67432994. Its totient is φ = 67432992.

The previous prime is 67432991. The next prime is 67432997. The reversal of 67432993 is 39923476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 5841889 = 7848^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 67432993 - 2¹ = 67432991 is a prime.

Together with 67432991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67432991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33716496 + 33716497.

It is an arithmetic number, because the mean of its divisors is an integer number (33716497).

Almost surely, 2^67432993 is an apocalyptic number.

It is an amenable number.

67432993 is a deficient number, since it is larger than the sum of its proper divisors (1).

67432993 is an equidigital number, since it uses as much as digits as its factorization.

67432993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The square root of 67432993 is about 8211.7594338850. The cubic root of 67432993 is about 407.0278682670.

The spelling of 67432993 in words is "sixty-seven million, four hundred thirty-two thousand, nine hundred ninety-three".