61716736 has 27 divisors (see below), whose sum is σ = 123443803. Its totient is φ = 30795520.

The previous prime is 61716713. The next prime is 61716737. The reversal of 61716736 is 63761716.

The square root of 61716736 is 7856.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×61716736³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61716695 and 61716704.

It is not an unprimeable number, because it can be changed into a prime (61716737) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 125451 + ... + 125941.

Almost surely, 2^61716736 is an apocalyptic number.

61716736 is the 7856-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61716736

61716736 is an abundant number, since it is smaller than the sum of its proper divisors (61727067).

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

61716736 is an frugal number, since it uses more digits than its factorization.

61716736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 493 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The cubic root of 61716736 is about 395.1854835757.

The spelling of 61716736 in words is "sixty-one million, seven hundred sixteen thousand, seven hundred thirty-six".