61783116 has 24 divisors (see below), whose sum is σ = 144291840. Its totient is φ = 20575632.

The previous prime is 61783097. The next prime is 61783123. The reversal of 61783116 is 61138716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19645 + ... + 22571.

It is an arithmetic number, because the mean of its divisors is an integer number (6012160).

Almost surely, 2^61783116 is an apocalyptic number.

It is an amenable number.

61783116 is an abundant number, since it is smaller than the sum of its proper divisors (82508724).

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

61783116 is a wasteful number, since it uses less digits than its factorization.

61783116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693 (or 4691 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 61783116 is about 7860.2236609399. The cubic root of 61783116 is about 395.3271145977.

The spelling of 61783116 in words is "sixty-one million, seven hundred eighty-three thousand, one hundred sixteen".