123884587 has 4 divisors (see below), whose sum is σ = 127880896. Its totient is φ = 119888280.

The previous prime is 123884573. The next prime is 123884599. The reversal of 123884587 is 785488321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785488321 = 503 ⋅1561607.

It is a cyclic number.

It is not a de Polignac number, because 123884587 - 2⁷ = 123884459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123884557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1998108 + ... + 1998169.

It is an arithmetic number, because the mean of its divisors is an integer number (31970224).

Almost surely, 2^123884587 is an apocalyptic number.

123884587 is a deficient number, since it is larger than the sum of its proper divisors (3996309).

123884587 is an equidigital number, since it uses as much as digits as its factorization.

123884587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996308.

The product of its digits is 430080, while the sum is 46.

The square root of 123884587 is about 11130.3453225855. The cubic root of 123884587 is about 498.5083369749.

The spelling of 123884587 in words is "one hundred twenty-three million, eight hundred eighty-four thousand, five hundred eighty-seven".