966621783 has 8 divisors (see below), whose sum is σ = 1289434096. Its totient is φ = 644112000.

The previous prime is 966621769. The next prime is 966621809. The reversal of 966621783 is 387126669.

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

It is not a de Polignac number, because 966621783 - 2⁴ = 966621767 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 (966621763) 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, 68068 + ... + 81033.

It is an arithmetic number, because the mean of its divisors is an integer number (161179262).

Almost surely, 2^966621783 is an apocalyptic number.

966621783 is a deficient number, since it is larger than the sum of its proper divisors (322812313).

966621783 is a wasteful number, since it uses less digits than its factorization.

966621783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151265.

The product of its digits is 653184, while the sum is 48.

The square root of 966621783 is about 31090.5416967926. The cubic root of 966621783 is about 988.7477903334.

The spelling of 966621783 in words is "nine hundred sixty-six million, six hundred twenty-one thousand, seven hundred eighty-three".