167791369 has 2 divisors, whose sum is σ = 167791370. Its totient is φ = 167791368.

The previous prime is 167791367. The next prime is 167791373. The reversal of 167791369 is 963197761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157628025 + 10163344 = 12555^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 167791369 - 2¹ = 167791367 is a prime.

It is a super-2 number, since 2×167791369² = 56307887021788322, which contains 22 as substring.

Together with 167791367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (167791367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83895684 + 83895685.

It is an arithmetic number, because the mean of its divisors is an integer number (83895685).

Almost surely, 2^167791369 is an apocalyptic number.

It is an amenable number.

167791369 is a deficient number, since it is larger than the sum of its proper divisors (1).

167791369 is an equidigital number, since it uses as much as digits as its factorization.

167791369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 49.

The square root of 167791369 is about 12953.4307810711. The cubic root of 167791369 is about 551.5563291084.

The spelling of 167791369 in words is "one hundred sixty-seven million, seven hundred ninety-one thousand, three hundred sixty-nine".