73224889 has 2 divisors, whose sum is σ = 73224890. Its totient is φ = 73224888.

The previous prime is 73224869. The next prime is 73224901. The reversal of 73224889 is 98842237.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73188025 + 36864 = 8555^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 73224889 - 2⁵ = 73224857 is a prime.

It is not a weakly prime, because it can be changed into another prime (73224869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36612444 + 36612445.

It is an arithmetic number, because the mean of its divisors is an integer number (36612445).

Almost surely, 2^73224889 is an apocalyptic number.

It is an amenable number.

73224889 is a deficient number, since it is larger than the sum of its proper divisors (1).

73224889 is an equidigital number, since it uses as much as digits as its factorization.

73224889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 73224889 is about 8557.1542582800. The cubic root of 73224889 is about 418.3626520124.

The spelling of 73224889 in words is "seventy-three million, two hundred twenty-four thousand, eight hundred eighty-nine".