5123646 has 48 divisors (see below), whose sum is σ = 12270960. Its totient is φ = 1532160.

The previous prime is 5123639. The next prime is 5123683. The reversal of 5123646 is 6463215.

5123646 is a `hidden beast` number, since 5 + 12 + 3 + 646 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 22260 + ... + 22488.

It is an arithmetic number, because the mean of its divisors is an integer number (255645).

Almost surely, 2^5123646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5123646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6135480).

5123646 is an abundant number, since it is smaller than the sum of its proper divisors (7147314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5123646 is a wasteful number, since it uses less digits than its factorization.

5123646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 358 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 5123646 is about 2263.5472162073. The cubic root of 5123646 is about 172.3956773122.

The spelling of 5123646 in words is "five million, one hundred twenty-three thousand, six hundred forty-six".