811984616 has 8 divisors (see below), whose sum is σ = 1522471170. Its totient is φ = 405992304.

The previous prime is 811984597. The next prime is 811984619. The reversal of 811984616 is 616489118.

811984616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 778968100 + 33016516 = 27910^2 + 5746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (811984619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50749031 + ... + 50749046.

Almost surely, 2^811984616 is an apocalyptic number.

It is an amenable number.

811984616 is a deficient number, since it is larger than the sum of its proper divisors (710486554).

811984616 is a wasteful number, since it uses less digits than its factorization.

811984616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101498083 (or 101498079 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 811984616 is about 28495.3437599900. The cubic root of 811984616 is about 932.9304473156.

The spelling of 811984616 in words is "eight hundred eleven million, nine hundred eighty-four thousand, six hundred sixteen".