61688588 has 24 divisors (see below), whose sum is σ = 117668208. Its totient is φ = 28126656.

The previous prime is 61688587. The next prime is 61688647. The reversal of 61688588 is 88588616.

61688588 is digitally balanced in base 2 and base 9, because in such bases it contains all the possibile digits an equal number of times.

61688588 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (61688587) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2831 + ... + 11462.

It is an arithmetic number, because the mean of its divisors is an integer number (4902842).

Almost surely, 2^61688588 is an apocalyptic number.

It is an amenable number.

61688588 is a deficient number, since it is larger than the sum of its proper divisors (55979620).

61688588 is a wasteful number, since it uses less digits than its factorization.

61688588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14393 (or 14391 counting only the distinct ones).

The product of its digits is 737280, while the sum is 50.

The square root of 61688588 is about 7854.2082987402. The cubic root of 61688588 is about 395.1253952147.

The spelling of 61688588 in words is "sixty-one million, six hundred eighty-eight thousand, five hundred eighty-eight".