73028 has 6 divisors (see below), whose sum is σ = 127806. Its totient is φ = 36512.

The previous prime is 73019. The next prime is 73037. The reversal of 73028 is 82037.

It is an interprime number because it is at equal distance from previous prime (73019) and next prime (73037).

It can be written as a sum of positive squares in only one way, i.e., 56644 + 16384 = 238^2 + 128^2 .

It is an unprimeable number.

73028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9125 + ... + 9132.

It is an arithmetic number, because the mean of its divisors is an integer number (21301).

2⁷³⁰²⁸ is an apocalyptic number.

It is an amenable number.

73028 is a deficient number, since it is larger than the sum of its proper divisors (54778).

73028 is a wasteful number, since it uses less digits than its factorization.

73028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18261 (or 18259 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 73028 is about 270.2369330791. The cubic root of 73028 is about 41.7987347282.

Subtracting 73028 from its reverse (82037), we obtain a palindrome (9009).

The spelling of 73028 in words is "seventy-three thousand, twenty-eight".