102688871 has 2 divisors, whose sum is σ = 102688872. Its totient is φ = 102688870.

The previous prime is 102688849. The next prime is 102688879. The reversal of 102688871 is 178886201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102688871 - 2²² = 98494567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102688879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51344435 + 51344436.

It is an arithmetic number, because the mean of its divisors is an integer number (51344436).

Almost surely, 2^102688871 is an apocalyptic number.

102688871 is a deficient number, since it is larger than the sum of its proper divisors (1).

102688871 is an equidigital number, since it uses as much as digits as its factorization.

102688871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 102688871 is about 10133.5517465497. The cubic root of 102688871 is about 468.2823542095.

The spelling of 102688871 in words is "one hundred two million, six hundred eighty-eight thousand, eight hundred seventy-one".