73404563 has 2 divisors, whose sum is σ = 73404564. Its totient is φ = 73404562.

The previous prime is 73404479. The next prime is 73404571. The reversal of 73404563 is 36540437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73404563 - 2¹⁴ = 73388179 is a prime.

It is not a weakly prime, because it can be changed into another prime (73404593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36702281 + 36702282.

It is an arithmetic number, because the mean of its divisors is an integer number (36702282).

Almost surely, 2^73404563 is an apocalyptic number.

73404563 is a deficient number, since it is larger than the sum of its proper divisors (1).

73404563 is an equidigital number, since it uses as much as digits as its factorization.

73404563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 73404563 is about 8567.6462928858. The cubic root of 73404563 is about 418.7045553119.

The spelling of 73404563 in words is "seventy-three million, four hundred four thousand, five hundred sixty-three".