73745686 has 32 divisors (see below), whose sum is σ = 129902400. Its totient is φ = 31385088.

The previous prime is 73745671. The next prime is 73745687. The reversal of 73745686 is 68654737.

It is a super-2 number, since 2×73745686² = 10876852407221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73745687) 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 15 ways as a sum of consecutive naturals, for example, 132120 + ... + 132676.

It is an arithmetic number, because the mean of its divisors is an integer number (4059450).

Almost surely, 2^73745686 is an apocalyptic number.

73745686 is a deficient number, since it is larger than the sum of its proper divisors (56156714).

73745686 is a wasteful number, since it uses less digits than its factorization.

73745686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 759 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 73745686 is about 8587.5308441950. The cubic root of 73745686 is about 419.3521493513.

The spelling of 73745686 in words is "seventy-three million, seven hundred forty-five thousand, six hundred eighty-six".