73713424 has 20 divisors (see below), whose sum is σ = 143188380. Its totient is φ = 36761600.

The previous prime is 73713383. The next prime is 73713427. The reversal of 73713424 is 42431737.

It can be written as a sum of positive squares in 2 ways, for example, as 50979600 + 22733824 = 7140^2 + 4768^2 .

It is not an unprimeable number, because it can be changed into a prime (73713427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672 + ... + 12160.

It is an arithmetic number, because the mean of its divisors is an integer number (7159419).

Almost surely, 2^73713424 is an apocalyptic number.

It is an amenable number.

73713424 is a deficient number, since it is larger than the sum of its proper divisors (69474956).

73713424 is a wasteful number, since it uses less digits than its factorization.

73713424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898 (or 11892 counting only the distinct ones).

The product of its digits is 14112, while the sum is 31.

The square root of 73713424 is about 8585.6522175080. The cubic root of 73713424 is about 419.2909882035.

It can be divided in two parts, 737 and 13424, that added together give a square (14161 = 119²).

The spelling of 73713424 in words is "seventy-three million, seven hundred thirteen thousand, four hundred twenty-four".