73004072 has 8 divisors (see below), whose sum is σ = 136882650. Its totient is φ = 36502032.

The previous prime is 73004053. The next prime is 73004077. The reversal of 73004072 is 27040037.

It can be written as a sum of positive squares in only one way, i.e., 59505796 + 13498276 = 7714^2 + 3674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (73004077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4562747 + ... + 4562762.

Almost surely, 2^73004072 is an apocalyptic number.

It is an amenable number.

73004072 is a deficient number, since it is larger than the sum of its proper divisors (63878578).

73004072 is a wasteful number, since it uses less digits than its factorization.

73004072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125515 (or 9125511 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 73004072 is about 8544.2420377702. The cubic root of 73004072 is about 417.9416903928.

The spelling of 73004072 in words is "seventy-three million, four thousand, seventy-two".