874167989 has 2 divisors, whose sum is σ = 874167990. Its totient is φ = 874167988.

The previous prime is 874167949. The next prime is 874168063. The reversal of 874167989 is 989761478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 796199089 + 77968900 = 28217^2 + 8830^2 .

It is a cyclic number.

It is not a de Polignac number, because 874167989 - 2¹² = 874163893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874167949) 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, 437083994 + 437083995.

It is an arithmetic number, because the mean of its divisors is an integer number (437083995).

Almost surely, 2^874167989 is an apocalyptic number.

It is an amenable number.

874167989 is a deficient number, since it is larger than the sum of its proper divisors (1).

874167989 is an equidigital number, since it uses as much as digits as its factorization.

874167989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 59.

The square root of 874167989 is about 29566.3320180235. The cubic root of 874167989 is about 956.1623371929.

The spelling of 874167989 in words is "eight hundred seventy-four million, one hundred sixty-seven thousand, nine hundred eighty-nine".