73028773 has 4 divisors (see below), whose sum is σ = 74226028. Its totient is φ = 71831520.

The previous prime is 73028743. The next prime is 73028779. The reversal of 73028773 is 37782037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5673924 + 67354849 = 2382^2 + 8207^2 .

It is a cyclic number.

It is not a de Polignac number, because 73028773 - 2²⁵ = 39474341 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 (73028779) 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, 598536 + ... + 598657.

It is an arithmetic number, because the mean of its divisors is an integer number (18556507).

Almost surely, 2^73028773 is an apocalyptic number.

It is an amenable number.

73028773 is a deficient number, since it is larger than the sum of its proper divisors (1197255).

73028773 is a wasteful number, since it uses less digits than its factorization.

73028773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197254.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 73028773 is about 8545.6873918954. The cubic root of 73028773 is about 417.9888220724.

The spelling of 73028773 in words is "seventy-three million, twenty-eight thousand, seven hundred seventy-three".