61568384 has 16 divisors (see below), whose sum is σ = 122656020. Its totient is φ = 30784128.

The previous prime is 61568371. The next prime is 61568443. The reversal of 61568384 is 48386516.

61568384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 240374 + ... + 240629.

Almost surely, 2^61568384 is an apocalyptic number.

61568384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61568384 is a deficient number, since it is larger than the sum of its proper divisors (61087636).

61568384 is an equidigital number, since it uses as much as digits as its factorization.

61568384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481017 (or 481005 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 61568384 is about 7846.5523639367. The cubic root of 61568384 is about 394.8685863117.

The spelling of 61568384 in words is "sixty-one million, five hundred sixty-eight thousand, three hundred eighty-four".