123086893 has 4 divisors (see below), whose sum is σ = 123555168. Its totient is φ = 122618620.

The previous prime is 123086881. The next prime is 123086897. The reversal of 123086893 is 398680321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123086893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123086897) 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, 233743 + ... + 234268.

It is an arithmetic number, because the mean of its divisors is an integer number (30888792).

Almost surely, 2^123086893 is an apocalyptic number.

It is an amenable number.

123086893 is a deficient number, since it is larger than the sum of its proper divisors (468275).

123086893 is an equidigital number, since it uses as much as digits as its factorization.

123086893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468274.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 123086893 is about 11094.4532537660. The cubic root of 123086893 is about 497.4360656206.

The spelling of 123086893 in words is "one hundred twenty-three million, eighty-six thousand, eight hundred ninety-three".