73061728 has 24 divisors (see below), whose sum is σ = 145666080. Its totient is φ = 36067200.

The previous prime is 73061693. The next prime is 73061749. The reversal of 73061728 is 82716037.

It is a junction number, because it is equal to n+sod(n) for n = 73061693 and 73061702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11923 + ... + 16978.

It is an arithmetic number, because the mean of its divisors is an integer number (6069420).

Almost surely, 2^73061728 is an apocalyptic number.

It is an amenable number.

73061728 is a deficient number, since it is larger than the sum of its proper divisors (72604352).

73061728 is a wasteful number, since it uses less digits than its factorization.

73061728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28990 (or 28982 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 73061728 is about 8547.6153399647. The cubic root of 73061728 is about 418.0516865643.

The spelling of 73061728 in words is "seventy-three million, sixty-one thousand, seven hundred twenty-eight".