73307903 has 2 divisors, whose sum is σ = 73307904. Its totient is φ = 73307902.

The previous prime is 73307887. The next prime is 73307929. The reversal of 73307903 is 30970337.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73307903 - 2⁴ = 73307887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73307903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73307203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36653951 + 36653952.

It is an arithmetic number, because the mean of its divisors is an integer number (36653952).

Almost surely, 2^73307903 is an apocalyptic number.

73307903 is a deficient number, since it is larger than the sum of its proper divisors (1).

73307903 is an equidigital number, since it uses as much as digits as its factorization.

73307903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907, while the sum is 32.

The square root of 73307903 is about 8562.0034454560. The cubic root of 73307903 is about 418.5206895396.

The spelling of 73307903 in words is "seventy-three million, three hundred seven thousand, nine hundred three".