73725687 has 16 divisors (see below), whose sum is σ = 124826880. Its totient is φ = 42128856.

The previous prime is 73725683. The next prime is 73725697. The reversal of 73725687 is 78652737.

It is not a de Polignac number, because 73725687 - 2² = 73725683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73725683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194853 + ... + 195230.

It is an arithmetic number, because the mean of its divisors is an integer number (7801680).

Almost surely, 2^73725687 is an apocalyptic number.

73725687 is a deficient number, since it is larger than the sum of its proper divisors (51101193).

73725687 is a wasteful number, since it uses less digits than its factorization.

73725687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390099 (or 390093 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 73725687 is about 8586.3663443857. The cubic root of 73725687 is about 419.3142380631.

The spelling of 73725687 in words is "seventy-three million, seven hundred twenty-five thousand, six hundred eighty-seven".