73916641 has 6 divisors (see below), whose sum is σ = 77270690. Its totient is φ = 70702368.

The previous prime is 73916597. The next prime is 73916651. The reversal of 73916641 is 14661937.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 26306641 = 6900^2 + 5129^2 .

It is not a de Polignac number, because 73916641 - 2¹⁹ = 73392353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73916641.

It is not an unprimeable number, because it can be changed into a prime (73916651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69336 + ... + 70393.

Almost surely, 2^73916641 is an apocalyptic number.

It is an amenable number.

73916641 is a deficient number, since it is larger than the sum of its proper divisors (3354049).

73916641 is a wasteful number, since it uses less digits than its factorization.

73916641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139775 (or 139752 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 73916641 is about 8597.4787583337. The cubic root of 73916641 is about 419.6759423984.

The spelling of 73916641 in words is "seventy-three million, nine hundred sixteen thousand, six hundred forty-one".