8423887 has 2 divisors, whose sum is σ = 8423888. Its totient is φ = 8423886.

The previous prime is 8423879. The next prime is 8423893. The reversal of 8423887 is 7883248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8423887 - 2³ = 8423879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8423867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4211943 + 4211944.

It is an arithmetic number, because the mean of its divisors is an integer number (4211944).

Almost surely, 2^8423887 is an apocalyptic number.

8423887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8423887 is an equidigital number, since it uses as much as digits as its factorization.

8423887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 40.

The square root of 8423887 is about 2902.3933227597. The cubic root of 8423887 is about 203.4717767788.

It can be divided in two parts, 84238 and 87, that multiplied together give a triangular number (7328706 = T₃₈₂₈).

The spelling of 8423887 in words is "eight million, four hundred twenty-three thousand, eight hundred eighty-seven".