73681333 has 4 divisors (see below), whose sum is σ = 80379648. Its totient is φ = 66983020.

The previous prime is 73681303. The next prime is 73681367. The reversal of 73681333 is 33318637.

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 73681333 - 2¹³ = 73673141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73681303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349141 + ... + 3349162.

It is an arithmetic number, because the mean of its divisors is an integer number (20094912).

Almost surely, 2^73681333 is an apocalyptic number.

It is an amenable number.

73681333 is a deficient number, since it is larger than the sum of its proper divisors (6698315).

73681333 is a wasteful number, since it uses less digits than its factorization.

73681333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698314.

The product of its digits is 27216, while the sum is 34.

The square root of 73681333 is about 8583.7831403176. The cubic root of 73681333 is about 419.2301335249.

The spelling of 73681333 in words is "seventy-three million, six hundred eighty-one thousand, three hundred thirty-three".