61711944 has 64 divisors (see below), whose sum is σ = 183997440. Its totient is φ = 16864320.

The previous prime is 61711939. The next prime is 61711957. The reversal of 61711944 is 44911716.

61711944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 4122 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (2874960).

Almost surely, 2^61711944 is an apocalyptic number.

It is an amenable number.

61711944 is an abundant number, since it is smaller than the sum of its proper divisors (122285496).

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

61711944 is a wasteful number, since it uses less digits than its factorization.

61711944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16010 (or 16006 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 61711944 is about 7855.6950042628. The cubic root of 61711944 is about 395.1752552434.

It can be divided in two parts, 617 and 11944, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 61711944 in words is "sixty-one million, seven hundred eleven thousand, nine hundred forty-four".