61601684 has 24 divisors (see below), whose sum is σ = 111901440. Its totient is φ = 29637216.

The previous prime is 61601621. The next prime is 61601711. The reversal of 61601684 is 48610616.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61601684.

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 7 ways as a sum of consecutive naturals, for example, 41849 + ... + 43295.

It is an arithmetic number, because the mean of its divisors is an integer number (4662560).

Almost surely, 2^61601684 is an apocalyptic number.

It is an amenable number.

61601684 is a deficient number, since it is larger than the sum of its proper divisors (50299756).

61601684 is a wasteful number, since it uses less digits than its factorization.

61601684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 61601684 is about 7848.6740281400. The cubic root of 61601684 is about 394.9397632868.

The spelling of 61601684 in words is "sixty-one million, six hundred one thousand, six hundred eighty-four".