73706724 has 144 divisors (see below), whose sum is σ = 232377600. Its totient is φ = 19180800.

The previous prime is 73706723. The next prime is 73706741. The reversal of 73706724 is 42760737.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (73706723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 488049 + ... + 488199.

Almost surely, 2^73706724 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 73706724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116188800).

73706724 is an abundant number, since it is smaller than the sum of its proper divisors (158670876).

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

73706724 is a wasteful number, since it uses less digits than its factorization.

73706724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 73706724 is about 8585.2620227923. The cubic root of 73706724 is about 419.2782843449.

The spelling of 73706724 in words is "seventy-three million, seven hundred six thousand, seven hundred twenty-four".