8123887 has 8 divisors (see below), whose sum is σ = 8697600. Its totient is φ = 7564824.

The previous prime is 8123881. The next prime is 8123897. The reversal of 8123887 is 7883218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8123887 - 2¹⁵ = 8091119 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8123881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2503 + ... + 4744.

It is an arithmetic number, because the mean of its divisors is an integer number (1087200).

Almost surely, 2^8123887 is an apocalyptic number.

8123887 is a deficient number, since it is larger than the sum of its proper divisors (573713).

8123887 is a wasteful number, since it uses less digits than its factorization.

8123887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325.

The product of its digits is 21504, while the sum is 37.

The square root of 8123887 is about 2850.2433229463. The cubic root of 8123887 is about 201.0271078841.

The spelling of 8123887 in words is "eight million, one hundred twenty-three thousand, eight hundred eighty-seven".