102820726 has 16 divisors (see below), whose sum is σ = 164314224. Its totient is φ = 48086784.

The previous prime is 102820717. The next prime is 102820733. The reversal of 102820726 is 627028201.

It is a junction number, because it is equal to n+sod(n) for n = 102820694 and 102820703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735 + ... + 14818.

It is an arithmetic number, because the mean of its divisors is an integer number (10269639).

Almost surely, 2^102820726 is an apocalyptic number.

102820726 is a deficient number, since it is larger than the sum of its proper divisors (61493498).

102820726 is a wasteful number, since it uses less digits than its factorization.

102820726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18735.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 102820726 is about 10140.0555225304. The cubic root of 102820726 is about 468.4826971176.

Adding to 102820726 its reverse (627028201), we get a palindrome (729848927).

The spelling of 102820726 in words is "one hundred two million, eight hundred twenty thousand, seven hundred twenty-six".