73507828 has 6 divisors (see below), whose sum is σ = 128638706. Its totient is φ = 36753912.

The previous prime is 73507817. The next prime is 73507829. The reversal of 73507828 is 82870537.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 26749584 = 6838^2 + 5172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73507829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9188475 + ... + 9188482.

Almost surely, 2^73507828 is an apocalyptic number.

It is an amenable number.

73507828 is a deficient number, since it is larger than the sum of its proper divisors (55130878).

73507828 is a wasteful number, since it uses less digits than its factorization.

73507828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376961 (or 18376959 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 73507828 is about 8573.6706258172. The cubic root of 73507828 is about 418.9008068098.

The spelling of 73507828 in words is "seventy-three million, five hundred seven thousand, eight hundred twenty-eight".