167473993 has 2 divisors, whose sum is σ = 167473994. Its totient is φ = 167473992.

The previous prime is 167473991. The next prime is 167474003. The reversal of 167473993 is 399374761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155550784 + 11923209 = 12472^2 + 3453^2 .

It is a cyclic number.

It is not a de Polignac number, because 167473993 - 2¹ = 167473991 is a prime.

Together with 167473991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (167473991) 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 as a sum of consecutive naturals, namely, 83736996 + 83736997.

It is an arithmetic number, because the mean of its divisors is an integer number (83736997).

Almost surely, 2^167473993 is an apocalyptic number.

It is an amenable number.

167473993 is a deficient number, since it is larger than the sum of its proper divisors (1).

167473993 is an equidigital number, since it uses as much as digits as its factorization.

167473993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 49.

The square root of 167473993 is about 12941.1743284758. The cubic root of 167473993 is about 551.2083548598.

The spelling of 167473993 in words is "one hundred sixty-seven million, four hundred seventy-three thousand, nine hundred ninety-three".