73440337 has 2 divisors, whose sum is σ = 73440338. Its totient is φ = 73440336.

The previous prime is 73440319. The next prime is 73440359. The reversal of 73440337 is 73304437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 11282881 = 7884^2 + 3359^2 .

It is a cyclic number.

It is not a de Polignac number, because 73440337 - 2¹¹ = 73438289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73440299 and 73440308.

It is not a weakly prime, because it can be changed into another prime (73440317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36720168 + 36720169.

It is an arithmetic number, because the mean of its divisors is an integer number (36720169).

Almost surely, 2^73440337 is an apocalyptic number.

It is an amenable number.

73440337 is a deficient number, since it is larger than the sum of its proper divisors (1).

73440337 is an equidigital number, since it uses as much as digits as its factorization.

73440337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 31.

The square root of 73440337 is about 8569.7337764950. The cubic root of 73440337 is about 418.7725633643.

The spelling of 73440337 in words is "seventy-three million, four hundred forty thousand, three hundred thirty-seven".