73726069 has 2 divisors, whose sum is σ = 73726070. Its totient is φ = 73726068.

The previous prime is 73726067. The next prime is 73726141. The reversal of 73726069 is 96062737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 879844 = 8535^2 + 938^2 .

It is an emirp because it is prime and its reverse (96062737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73726069 - 2¹ = 73726067 is a prime.

It is a super-2 number, since 2×73726069² = 10871066500385522, which contains 22 as substring.

Together with 73726067, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73726067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36863034 + 36863035.

It is an arithmetic number, because the mean of its divisors is an integer number (36863035).

Almost surely, 2^73726069 is an apocalyptic number.

It is an amenable number.

73726069 is a deficient number, since it is larger than the sum of its proper divisors (1).

73726069 is an equidigital number, since it uses as much as digits as its factorization.

73726069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 73726069 is about 8586.3885889238. The cubic root of 73726069 is about 419.3149622692.

The spelling of 73726069 in words is "seventy-three million, seven hundred twenty-six thousand, sixty-nine".