73224901 has 2 divisors, whose sum is σ = 73224902. Its totient is φ = 73224900.

The previous prime is 73224889. The next prime is 73224911. The reversal of 73224901 is 10942237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42588676 + 30636225 = 6526^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 73224901 - 2⁵ = 73224869 is a prime.

It is a super-2 number, since 2×73224901² = 10723772252919602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73224901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73224911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36612450 + 36612451.

It is an arithmetic number, because the mean of its divisors is an integer number (36612451).

Almost surely, 2^73224901 is an apocalyptic number.

It is an amenable number.

73224901 is a deficient number, since it is larger than the sum of its proper divisors (1).

73224901 is an equidigital number, since it uses as much as digits as its factorization.

73224901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 73224901 is about 8557.1549594477. The cubic root of 73224901 is about 418.3626748660.

The spelling of 73224901 in words is "seventy-three million, two hundred twenty-four thousand, nine hundred one".