61783946 has 8 divisors (see below), whose sum is σ = 105915360. Its totient is φ = 26478828.

The previous prime is 61783937. The next prime is 61783951. The reversal of 61783946 is 64938716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61783897 and 61783906.

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 3 ways as a sum of consecutive naturals, for example, 2206556 + ... + 2206583.

It is an arithmetic number, because the mean of its divisors is an integer number (13239420).

Almost surely, 2^61783946 is an apocalyptic number.

61783946 is a deficient number, since it is larger than the sum of its proper divisors (44131414).

61783946 is a wasteful number, since it uses less digits than its factorization.

61783946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413148.

The product of its digits is 217728, while the sum is 44.

The square root of 61783946 is about 7860.2764582424. The cubic root of 61783946 is about 395.3288848765.

The spelling of 61783946 in words is "sixty-one million, seven hundred eighty-three thousand, nine hundred forty-six".