73712530 has 16 divisors (see below), whose sum is σ = 134363520. Its totient is φ = 29111472.

The previous prime is 73712503. The next prime is 73712537. The reversal of 73712530 is 3521737.

It is not an unprimeable number, because it can be changed into a prime (73712537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45864 + ... + 47443.

It is an arithmetic number, because the mean of its divisors is an integer number (8397720).

Almost surely, 2^73712530 is an apocalyptic number.

73712530 is a deficient number, since it is larger than the sum of its proper divisors (60650990).

73712530 is a wasteful number, since it uses less digits than its factorization.

73712530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93393.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 73712530 is about 8585.6001537458. The cubic root of 73712530 is about 419.2892931361.

The spelling of 73712530 in words is "seventy-three million, seven hundred twelve thousand, five hundred thirty".