73716736 has 44 divisors (see below), whose sum is σ = 148522132. Its totient is φ = 36569088.

The previous prime is 73716733. The next prime is 73716737. The reversal of 73716736 is 63761737.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 45158400 = 5344^2 + 6720^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73716733) 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, 197446 + ... + 197818.

It is an arithmetic number, because the mean of its divisors is an integer number (3375503).

Almost surely, 2^73716736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73716736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74261066).

73716736 is an abundant number, since it is smaller than the sum of its proper divisors (74805396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73716736 is a wasteful number, since it uses less digits than its factorization.

73716736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 568 counting only the distinct ones).

The product of its digits is 111132, while the sum is 40.

The square root of 73716736 is about 8585.8450952716. The cubic root of 73716736 is about 419.2972677967.

The spelling of 73716736 in words is "seventy-three million, seven hundred sixteen thousand, seven hundred thirty-six".