73340387 has 2 divisors, whose sum is σ = 73340388. Its totient is φ = 73340386.

The previous prime is 73340303. The next prime is 73340441. The reversal of 73340387 is 78304337.

It is a strong prime.

It is an emirp because it is prime and its reverse (78304337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73340387 - 2²⁰ = 72291811 is a prime.

It is not a weakly prime, because it can be changed into another prime (73340587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36670193 + 36670194.

It is an arithmetic number, because the mean of its divisors is an integer number (36670194).

Almost surely, 2^73340387 is an apocalyptic number.

73340387 is a deficient number, since it is larger than the sum of its proper divisors (1).

73340387 is an equidigital number, since it uses as much as digits as its factorization.

73340387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 73340387 is about 8563.9002212777. The cubic root of 73340387 is about 418.5824983302.

The spelling of 73340387 in words is "seventy-three million, three hundred forty thousand, three hundred eighty-seven".