73226813 has 8 divisors (see below), whose sum is σ = 80015040. Its totient is φ = 66460480.

The previous prime is 73226809. The next prime is 73226819. The reversal of 73226813 is 31862237.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73226813 - 2² = 73226809 is a prime.

It is a super-2 number, since 2×73226813² = 10724332284273938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73226813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73226819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (10001880).

Almost surely, 2^73226813 is an apocalyptic number.

It is an amenable number.

73226813 is a deficient number, since it is larger than the sum of its proper divisors (6788227).

73226813 is a wasteful number, since it uses less digits than its factorization.

73226813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10947.

The product of its digits is 12096, while the sum is 32.

The square root of 73226813 is about 8557.2666780930. The cubic root of 73226813 is about 418.3663161704.

The spelling of 73226813 in words is "seventy-three million, two hundred twenty-six thousand, eight hundred thirteen".