73389403 has 2 divisors, whose sum is σ = 73389404. Its totient is φ = 73389402.

The previous prime is 73389397. The next prime is 73389413. The reversal of 73389403 is 30498337.

It is a weak prime.

It is an emirp because it is prime and its reverse (30498337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73389403 - 2²¹ = 71292251 is a prime.

It is not a weakly prime, because it can be changed into another prime (73389413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36694701 + 36694702.

It is an arithmetic number, because the mean of its divisors is an integer number (36694702).

Almost surely, 2^73389403 is an apocalyptic number.

73389403 is a deficient number, since it is larger than the sum of its proper divisors (1).

73389403 is an equidigital number, since it uses as much as digits as its factorization.

73389403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 73389403 is about 8566.7615234696. The cubic root of 73389403 is about 418.6757287747.

The spelling of 73389403 in words is "seventy-three million, three hundred eighty-nine thousand, four hundred three".