73738237 has 2 divisors, whose sum is σ = 73738238. Its totient is φ = 73738236.

The previous prime is 73738199. The next prime is 73738261. The reversal of 73738237 is 73283737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37810201 + 35928036 = 6149^2 + 5994^2 .

It is an emirp because it is prime and its reverse (73283737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73738237 - 2⁷ = 73738109 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73738237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73738277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36869118 + 36869119.

It is an arithmetic number, because the mean of its divisors is an integer number (36869119).

Almost surely, 2^73738237 is an apocalyptic number.

It is an amenable number.

73738237 is a deficient number, since it is larger than the sum of its proper divisors (1).

73738237 is an equidigital number, since it uses as much as digits as its factorization.

73738237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 40.

The square root of 73738237 is about 8587.0971230096. The cubic root of 73738237 is about 419.3380293871.

The spelling of 73738237 in words is "seventy-three million, seven hundred thirty-eight thousand, two hundred thirty-seven".