73712546 has 4 divisors (see below), whose sum is σ = 110568822. Its totient is φ = 36856272.

The previous prime is 73712543. The next prime is 73712557. The reversal of 73712546 is 64521737.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65788321 + 7924225 = 8111^2 + 2815^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73712543) 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 as a sum of consecutive naturals, namely, 18428135 + ... + 18428138.

Almost surely, 2^73712546 is an apocalyptic number.

73712546 is a deficient number, since it is larger than the sum of its proper divisors (36856276).

73712546 is a wasteful number, since it uses less digits than its factorization.

73712546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36856275.

The product of its digits is 35280, while the sum is 35.

The square root of 73712546 is about 8585.6010855385. The cubic root of 73712546 is about 419.2893234730.

The spelling of 73712546 in words is "seventy-three million, seven hundred twelve thousand, five hundred forty-six".