167896321 has 2 divisors, whose sum is σ = 167896322. Its totient is φ = 167896320.

The previous prime is 167896273. The next prime is 167896363. The reversal of 167896321 is 123698761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144480400 + 23415921 = 12020^2 + 4839^2 .

It is a cyclic number.

It is not a de Polignac number, because 167896321 - 2⁷ = 167896193 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (167896721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83948160 + 83948161.

It is an arithmetic number, because the mean of its divisors is an integer number (83948161).

Almost surely, 2^167896321 is an apocalyptic number.

It is an amenable number.

167896321 is a deficient number, since it is larger than the sum of its proper divisors (1).

167896321 is an equidigital number, since it uses as much as digits as its factorization.

167896321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 167896321 is about 12957.4812753096. The cubic root of 167896321 is about 551.6713029896.

The spelling of 167896321 in words is "one hundred sixty-seven million, eight hundred ninety-six thousand, three hundred twenty-one".