61713444 has 96 divisors (see below), whose sum is σ = 167086080. Its totient is φ = 17566848.

The previous prime is 61713419. The next prime is 61713461. The reversal of 61713444 is 44431716.

61713444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61713444² = 7617098340682272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139087 + ... + 139529.

It is an arithmetic number, because the mean of its divisors is an integer number (1740480).

Almost surely, 2^61713444 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 61713444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83543040).

61713444 is an abundant number, since it is smaller than the sum of its proper divisors (105372636).

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

61713444 is a wasteful number, since it uses less digits than its factorization.

61713444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 527 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 61713444 is about 7855.7904758210. The cubic root of 61713444 is about 395.1784569903.

The spelling of 61713444 in words is "sixty-one million, seven hundred thirteen thousand, four hundred forty-four".