102686823 has 6 divisors (see below), whose sum is σ = 148325424. Its totient is φ = 68457876.

The previous prime is 102686821. The next prime is 102686873. The reversal of 102686823 is 328686201.

It is not a de Polignac number, because 102686823 - 2¹ = 102686821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102686821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5704815 + ... + 5704832.

It is an arithmetic number, because the mean of its divisors is an integer number (24720904).

Almost surely, 2^102686823 is an apocalyptic number.

102686823 is a deficient number, since it is larger than the sum of its proper divisors (45638601).

102686823 is a wasteful number, since it uses less digits than its factorization.

102686823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11409653 (or 11409650 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 102686823 is about 10133.4506955923. The cubic root of 102686823 is about 468.2792410885.

The spelling of 102686823 in words is "one hundred two million, six hundred eighty-six thousand, eight hundred twenty-three".