871016623 has 2 divisors, whose sum is σ = 871016624. Its totient is φ = 871016622.

The previous prime is 871016617. The next prime is 871016717. The reversal of 871016623 is 326610178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871016623 - 2⁵ = 871016591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871016023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435508311 + 435508312.

It is an arithmetic number, because the mean of its divisors is an integer number (435508312).

Almost surely, 2^871016623 is an apocalyptic number.

871016623 is a deficient number, since it is larger than the sum of its proper divisors (1).

871016623 is an equidigital number, since it uses as much as digits as its factorization.

871016623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 871016623 is about 29512.9907498376. The cubic root of 871016623 is about 955.0119688201.

The spelling of 871016623 in words is "eight hundred seventy-one million, sixteen thousand, six hundred twenty-three".