61636104 has 24 divisors (see below), whose sum is σ = 166931310. Its totient is φ = 20545344.

The previous prime is 61636103. The next prime is 61636109. The reversal of 61636104 is 40163616.

61636104 is a `hidden beast` number, since 616 + 36 + 10 + 4 = 666.

61636104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51408900 + 10227204 = 7170^2 + 3198^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (61636103) 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 5 ways as a sum of consecutive naturals, for example, 427957 + ... + 428100.

Almost surely, 2^61636104 is an apocalyptic number.

It is an amenable number.

61636104 is an abundant number, since it is smaller than the sum of its proper divisors (105295206).

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

61636104 is a wasteful number, since it uses less digits than its factorization.

61636104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856069 (or 856062 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 61636104 is about 7850.8664489978. The cubic root of 61636104 is about 395.0133072481.

The spelling of 61636104 in words is "sixty-one million, six hundred thirty-six thousand, one hundred four".