61947882 has 16 divisors (see below), whose sum is σ = 137662080. Its totient is φ = 20649276.

The previous prime is 61947877. The next prime is 61947883. The reversal of 61947882 is 28874916.

It is not an unprimeable number, because it can be changed into a prime (61947883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573538 + ... + 573645.

It is an arithmetic number, because the mean of its divisors is an integer number (8603880).

Almost surely, 2^61947882 is an apocalyptic number.

61947882 is an abundant number, since it is smaller than the sum of its proper divisors (75714198).

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

61947882 is a wasteful number, since it uses less digits than its factorization.

61947882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147194 (or 1147188 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 61947882 is about 7870.6976819085. The cubic root of 61947882 is about 395.6782280531.

The spelling of 61947882 in words is "sixty-one million, nine hundred forty-seven thousand, eight hundred eighty-two".