102820716 has 36 divisors (see below), whose sum is σ = 264318600. Its totient is φ = 33691968.

The previous prime is 102820699. The next prime is 102820717. The reversal of 102820716 is 617028201.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 102820716.

It is not an unprimeable number, because it can be changed into a prime (102820717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22081 + ... + 26328.

Almost surely, 2^102820716 is an apocalyptic number.

It is an amenable number.

102820716 is an abundant number, since it is smaller than the sum of its proper divisors (161497884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102820716 is a wasteful number, since it uses less digits than its factorization.

102820716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48478 (or 48473 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 102820716 is about 10140.0550294365. The cubic root of 102820716 is about 468.4826819299.

Adding to 102820716 its reverse (617028201), we get a palindrome (719848917).

The spelling of 102820716 in words is "one hundred two million, eight hundred twenty thousand, seven hundred sixteen".