213376873 has 2 divisors, whose sum is σ = 213376874. Its totient is φ = 213376872.

The previous prime is 213376871. The next prime is 213376901. The reversal of 213376873 is 378673312.

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., 202407529 + 10969344 = 14227^2 + 3312^2 .

It is a cyclic number.

It is not a de Polignac number, because 213376873 - 2¹ = 213376871 is a prime.

It is a super-3 number, since 3×213376873³ (a number of 26 digits) contains 333 as substring.

Together with 213376871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (213376871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106688436 + 106688437.

It is an arithmetic number, because the mean of its divisors is an integer number (106688437).

Almost surely, 2^213376873 is an apocalyptic number.

It is an amenable number.

213376873 is a deficient number, since it is larger than the sum of its proper divisors (1).

213376873 is an equidigital number, since it uses as much as digits as its factorization.

213376873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 213376873 is about 14607.4252693622. The cubic root of 213376873 is about 597.5612798735.

The spelling of 213376873 in words is "two hundred thirteen million, three hundred seventy-six thousand, eight hundred seventy-three".