61705716 has 48 divisors (see below), whose sum is σ = 153679680. Its totient is φ = 19202560.

The previous prime is 61705703. The next prime is 61705739. The reversal of 61705716 is 61750716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25570 + ... + 27878.

It is an arithmetic number, because the mean of its divisors is an integer number (3201660).

Almost surely, 2^61705716 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 61705716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76839840).

61705716 is an abundant number, since it is smaller than the sum of its proper divisors (91973964).

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

61705716 is a wasteful number, since it uses less digits than its factorization.

61705716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 61705716 is about 7855.2985939428. The cubic root of 61705716 is about 395.1619610352.

The spelling of 61705716 in words is "sixty-one million, seven hundred five thousand, seven hundred sixteen".