167944393 has 2 divisors, whose sum is σ = 167944394. Its totient is φ = 167944392.

The previous prime is 167944379. The next prime is 167944397. The reversal of 167944393 is 393449761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108222409 + 59721984 = 10403^2 + 7728^2 .

It is a cyclic number.

It is not a de Polignac number, because 167944393 - 2¹³ = 167936201 is a prime.

It is equal to p_9394498 and since 167944393 and 9394498 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (167944397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83972196 + 83972197.

It is an arithmetic number, because the mean of its divisors is an integer number (83972197).

Almost surely, 2^167944393 is an apocalyptic number.

It is an amenable number.

167944393 is a deficient number, since it is larger than the sum of its proper divisors (1).

167944393 is an equidigital number, since it uses as much as digits as its factorization.

167944393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 167944393 is about 12959.3361326883. The cubic root of 167944393 is about 551.7239493928.

The spelling of 167944393 in words is "one hundred sixty-seven million, nine hundred forty-four thousand, three hundred ninety-three".