61885992 has 32 divisors (see below), whose sum is σ = 176817600. Its totient is φ = 17681664.

The previous prime is 61885979. The next prime is 61886009. The reversal of 61885992 is 29958816.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184017 + ... + 184352.

It is an arithmetic number, because the mean of its divisors is an integer number (5525550).

Almost surely, 2^61885992 is an apocalyptic number.

It is an amenable number.

61885992 is an abundant number, since it is smaller than the sum of its proper divisors (114931608).

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

61885992 is a wasteful number, since it uses less digits than its factorization.

61885992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368385 (or 368381 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 61885992 is about 7866.7650276337. The cubic root of 61885992 is about 395.5464146400.

The spelling of 61885992 in words is "sixty-one million, eight hundred eighty-five thousand, nine hundred ninety-two".