12663750 has 80 divisors (see below), whose sum is σ = 34638912. Its totient is φ = 3060000.

The previous prime is 12663743. The next prime is 12663769. The reversal of 12663750 is 5736621.

12663750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41097 + ... + 41403.

Almost surely, 2^12663750 is an apocalyptic number.

12663750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12663750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17319456).

12663750 is an abundant number, since it is smaller than the sum of its proper divisors (21975162).

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

12663750 is a wasteful number, since it uses less digits than its factorization.

12663750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 12663750 is about 3558.6163041272. The cubic root of 12663750 is about 233.0884619307.

The spelling of 12663750 in words is "twelve million, six hundred sixty-three thousand, seven hundred fifty".