73229969 has 2 divisors, whose sum is σ = 73229970. Its totient is φ = 73229968.

The previous prime is 73229963. The next prime is 73230007. The reversal of 73229969 is 96992237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 11135569 = 7880^2 + 3337^2 .

It is an emirp because it is prime and its reverse (96992237) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73229969 is a prime.

It is a super-2 number, since 2×73229969² = 10725256719481922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73229963) 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, 36614984 + 36614985.

It is an arithmetic number, because the mean of its divisors is an integer number (36614985).

Almost surely, 2^73229969 is an apocalyptic number.

It is an amenable number.

73229969 is a deficient number, since it is larger than the sum of its proper divisors (1).

73229969 is an equidigital number, since it uses as much as digits as its factorization.

73229969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 367416, while the sum is 47.

The square root of 73229969 is about 8557.4510807833. The cubic root of 73229969 is about 418.3723264694.

The spelling of 73229969 in words is "seventy-three million, two hundred twenty-nine thousand, nine hundred sixty-nine".