73333913 has 4 divisors (see below), whose sum is σ = 76522368. Its totient is φ = 70145460.

The previous prime is 73333907. The next prime is 73333919. The reversal of 73333913 is 31933337.

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 an interprime number because it is at equal distance from previous prime (73333907) and next prime (73333919).

It is a cyclic number.

It is not a de Polignac number, because 73333913 - 2⁸ = 73333657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73333913.

It is not an unprimeable number, because it can be changed into a prime (73333919) 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, 1594193 + ... + 1594238.

It is an arithmetic number, because the mean of its divisors is an integer number (19130592).

Almost surely, 2^73333913 is an apocalyptic number.

It is an amenable number.

73333913 is a deficient number, since it is larger than the sum of its proper divisors (3188455).

73333913 is a wasteful number, since it uses less digits than its factorization.

73333913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188454.

The product of its digits is 15309, while the sum is 32.

The square root of 73333913 is about 8563.5222309515. The cubic root of 73333913 is about 418.5701814112.

The spelling of 73333913 in words is "seventy-three million, three hundred thirty-three thousand, nine hundred thirteen".