61836606 has 48 divisors (see below), whose sum is σ = 144864720. Its totient is φ = 18950400.

The previous prime is 61836587. The next prime is 61836617. The reversal of 61836606 is 60663816.

61836606 is a `hidden beast` number, since 6 + 18 + 36 + 606 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 93505 + ... + 94163.

It is an arithmetic number, because the mean of its divisors is an integer number (3018015).

Almost surely, 2^61836606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61836606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72432360).

61836606 is an abundant number, since it is smaller than the sum of its proper divisors (83028114).

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

61836606 is a wasteful number, since it uses less digits than its factorization.

61836606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 61836606 is about 7863.6254997298. The cubic root of 61836606 is about 395.4411692085.

The spelling of 61836606 in words is "sixty-one million, eight hundred thirty-six thousand, six hundred six".