61968383 has 8 divisors (see below), whose sum is σ = 65763648. Its totient is φ = 58189824.

The previous prime is 61968373. The next prime is 61968397. The reversal of 61968383 is 38386916.

It is a Cunningham number, because it is equal to 7872²-1.

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

It is a cyclic number.

It is not a de Polignac number, because 61968383 - 2¹⁶ = 61902847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61968373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (8220456).

Almost surely, 2^61968383 is an apocalyptic number.

61968383 is a deficient number, since it is larger than the sum of its proper divisors (3795265).

61968383 is a wasteful number, since it uses less digits than its factorization.

61968383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353.

The product of its digits is 186624, while the sum is 44.

The square root of 61968383 is about 7871.9999364837. Note that the first 4 decimals coincide. The cubic root of 61968383 is about 395.7218717550.

The spelling of 61968383 in words is "sixty-one million, nine hundred sixty-eight thousand, three hundred eighty-three".