73328903 has 4 divisors (see below), whose sum is σ = 73355880. Its totient is φ = 73301928.

The previous prime is 73328881. The next prime is 73328921. The reversal of 73328903 is 30982337.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30982337 = 2729 ⋅11353.

It is a cyclic number.

It is not a de Polignac number, because 73328903 - 2²² = 69134599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73328933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8888 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (18338970).

Almost surely, 2^73328903 is an apocalyptic number.

73328903 is a deficient number, since it is larger than the sum of its proper divisors (26977).

73328903 is a wasteful number, since it uses less digits than its factorization.

73328903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26976.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 73328903 is about 8563.2297061331. The cubic root of 73328903 is about 418.5606492848.

The spelling of 73328903 in words is "seventy-three million, three hundred twenty-eight thousand, nine hundred three".