73222693 has 2 divisors, whose sum is σ = 73222694. Its totient is φ = 73222692.

The previous prime is 73222691. The next prime is 73222729. The reversal of 73222693 is 39622237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40424164 + 32798529 = 6358^2 + 5727^2 .

It is a cyclic number.

It is not a de Polignac number, because 73222693 - 2¹ = 73222691 is a prime.

Together with 73222691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73222691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36611346 + 36611347.

It is an arithmetic number, because the mean of its divisors is an integer number (36611347).

Almost surely, 2^73222693 is an apocalyptic number.

It is an amenable number.

73222693 is a deficient number, since it is larger than the sum of its proper divisors (1).

73222693 is an equidigital number, since it uses as much as digits as its factorization.

73222693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 73222693 is about 8557.0259436325. The cubic root of 73222693 is about 418.3584697661.

The spelling of 73222693 in words is "seventy-three million, two hundred twenty-two thousand, six hundred ninety-three".