61006878 has 16 divisors (see below), whose sum is σ = 135570960. Its totient is φ = 20335608.

The previous prime is 61006873. The next prime is 61006927. The reversal of 61006878 is 87860016.

61006878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61006871) 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, 564825 + ... + 564932.

It is an arithmetic number, because the mean of its divisors is an integer number (8473185).

Almost surely, 2^61006878 is an apocalyptic number.

61006878 is an abundant number, since it is smaller than the sum of its proper divisors (74564082).

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

61006878 is a wasteful number, since it uses less digits than its factorization.

61006878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129768 (or 1129762 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 61006878 is about 7810.6899823255. The cubic root of 61006878 is about 393.6645129605.

The spelling of 61006878 in words is "sixty-one million, six thousand, eight hundred seventy-eight".