61785196 has 48 divisors (see below), whose sum is σ = 125102880. Its totient is φ = 26432000.

The previous prime is 61785187. The next prime is 61785197. The reversal of 61785196 is 69158716.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61785197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51726 + ... + 52906.

It is an arithmetic number, because the mean of its divisors is an integer number (2606310).

Almost surely, 2^61785196 is an apocalyptic number.

It is an amenable number.

61785196 is an abundant number, since it is smaller than the sum of its proper divisors (63317684).

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

61785196 is a wasteful number, since it uses less digits than its factorization.

61785196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1264 counting only the distinct ones).

The product of its digits is 90720, while the sum is 43.

The square root of 61785196 is about 7860.3559715830. The cubic root of 61785196 is about 395.3315509293.

The spelling of 61785196 in words is "sixty-one million, seven hundred eighty-five thousand, one hundred ninety-six".