102839623 has 2 divisors, whose sum is σ = 102839624. Its totient is φ = 102839622.

The previous prime is 102839621. The next prime is 102839641. The reversal of 102839623 is 326938201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102839623 - 2¹ = 102839621 is a prime.

Together with 102839621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102839621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51419811 + 51419812.

It is an arithmetic number, because the mean of its divisors is an integer number (51419812).

Almost surely, 2^102839623 is an apocalyptic number.

102839623 is a deficient number, since it is larger than the sum of its proper divisors (1).

102839623 is an equidigital number, since it uses as much as digits as its factorization.

102839623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 102839623 is about 10140.9872793530. The cubic root of 102839623 is about 468.5113955314.

The spelling of 102839623 in words is "one hundred two million, eight hundred thirty-nine thousand, six hundred twenty-three".