73563128 has 16 divisors (see below), whose sum is σ = 139482000. Its totient is φ = 36367936.

The previous prime is 73563121. The next prime is 73563137. The reversal of 73563128 is 82136537.

It is a super-2 number, since 2×73563128² = 10823067602288768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73563121) 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, 50948 + ... + 52371.

It is an arithmetic number, because the mean of its divisors is an integer number (8717625).

Almost surely, 2^73563128 is an apocalyptic number.

It is an amenable number.

73563128 is a deficient number, since it is larger than the sum of its proper divisors (65918872).

73563128 is a wasteful number, since it uses less digits than its factorization.

73563128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103414 (or 103410 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 73563128 is about 8576.8950092676. The cubic root of 73563128 is about 419.0058269534.

The spelling of 73563128 in words is "seventy-three million, five hundred sixty-three thousand, one hundred twenty-eight".