73871089 has 2 divisors, whose sum is σ = 73871090. Its totient is φ = 73871088.

The previous prime is 73871087. The next prime is 73871123. The reversal of 73871089 is 98017837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71115489 + 2755600 = 8433^2 + 1660^2 .

It is an emirp because it is prime and its reverse (98017837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73871089 - 2¹ = 73871087 is a prime.

Together with 73871087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73871081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36935544 + 36935545.

It is an arithmetic number, because the mean of its divisors is an integer number (36935545).

Almost surely, 2^73871089 is an apocalyptic number.

It is an amenable number.

73871089 is a deficient number, since it is larger than the sum of its proper divisors (1).

73871089 is an equidigital number, since it uses as much as digits as its factorization.

73871089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 73871089 is about 8594.8292013280. The cubic root of 73871089 is about 419.5897146033.

The spelling of 73871089 in words is "seventy-three million, eight hundred seventy-one thousand, eighty-nine".