96821765 has 8 divisors (see below), whose sum is σ = 117492120. Its totient is φ = 76586752.

The previous prime is 96821737. The next prime is 96821771. The reversal of 96821765 is 56712869.

It can be written as a sum of positive squares in 4 ways, for example, as 605284 + 96216481 = 778^2 + 9809^2 .

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 96821765 - 2¹⁴ = 96805381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108344 + ... + 109233.

It is an arithmetic number, because the mean of its divisors is an integer number (14686515).

Almost surely, 2^96821765 is an apocalyptic number.

It is an amenable number.

96821765 is a deficient number, since it is larger than the sum of its proper divisors (20670355).

96821765 is a wasteful number, since it uses less digits than its factorization.

96821765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217671.

The product of its digits is 181440, while the sum is 44.

The square root of 96821765 is about 9839.8051301842. The cubic root of 96821765 is about 459.1884951940.

The spelling of 96821765 in words is "ninety-six million, eight hundred twenty-one thousand, seven hundred sixty-five".