61705768 has 16 divisors (see below), whose sum is σ = 121788000. Its totient is φ = 29228976.

The previous prime is 61705753. The next prime is 61705771. The reversal of 61705768 is 86750716.

61705768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61705768.

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 3 ways as a sum of consecutive naturals, for example, 202828 + ... + 203131.

It is an arithmetic number, because the mean of its divisors is an integer number (7611750).

Almost surely, 2^61705768 is an apocalyptic number.

It is an amenable number.

61705768 is a deficient number, since it is larger than the sum of its proper divisors (60082232).

61705768 is a wasteful number, since it uses less digits than its factorization.

61705768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405984 (or 405980 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 61705768 is about 7855.3019038099. The cubic root of 61705768 is about 395.1620720375.

The spelling of 61705768 in words is "sixty-one million, seven hundred five thousand, seven hundred sixty-eight".