73671289 has 4 divisors (see below), whose sum is σ = 73713024. Its totient is φ = 73629556.

The previous prime is 73671259. The next prime is 73671293. The reversal of 73671289 is 98217637.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73671289 - 2⁷ = 73671161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73671259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18097 + ... + 21790.

It is an arithmetic number, because the mean of its divisors is an integer number (18428256).

Almost surely, 2^73671289 is an apocalyptic number.

It is an amenable number.

73671289 is a deficient number, since it is larger than the sum of its proper divisors (41735).

73671289 is a wasteful number, since it uses less digits than its factorization.

73671289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41734.

The product of its digits is 127008, while the sum is 43.

The square root of 73671289 is about 8583.1980636590. The cubic root of 73671289 is about 419.2110832958.

The spelling of 73671289 in words is "seventy-three million, six hundred seventy-one thousand, two hundred eighty-nine".