73313969 has 2 divisors, whose sum is σ = 73313970. Its totient is φ = 73313968.

The previous prime is 73313957. The next prime is 73313971. The reversal of 73313969 is 96931337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58721569 + 14592400 = 7663^2 + 3820^2 .

It is an emirp because it is prime and its reverse (96931337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73313969 - 2⁴ = 73313953 is a prime.

It is a super-2 number, since 2×73313969² = 10749876101065922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 73313971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (73310969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36656984 + 36656985.

It is an arithmetic number, because the mean of its divisors is an integer number (36656985).

Almost surely, 2^73313969 is an apocalyptic number.

It is an amenable number.

73313969 is a deficient number, since it is larger than the sum of its proper divisors (1).

73313969 is an equidigital number, since it uses as much as digits as its factorization.

73313969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 41.

The square root of 73313969 is about 8562.3576776493. The cubic root of 73313969 is about 418.5322329812.

The spelling of 73313969 in words is "seventy-three million, three hundred thirteen thousand, nine hundred sixty-nine".