73889903 has 2 divisors, whose sum is σ = 73889904. Its totient is φ = 73889902.

The previous prime is 73889899. The next prime is 73889911. The reversal of 73889903 is 30998837.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73889903 - 2² = 73889899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73889983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36944951 + 36944952.

It is an arithmetic number, because the mean of its divisors is an integer number (36944952).

Almost surely, 2^73889903 is an apocalyptic number.

73889903 is a deficient number, since it is larger than the sum of its proper divisors (1).

73889903 is an equidigital number, since it uses as much as digits as its factorization.

73889903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 73889903 is about 8595.9236269292. The cubic root of 73889903 is about 419.6253329168.

The spelling of 73889903 in words is "seventy-three million, eight hundred eighty-nine thousand, nine hundred three".