12400763 has 4 divisors (see below), whose sum is σ = 12407808. Its totient is φ = 12393720.

The previous prime is 12400757. The next prime is 12400793. The reversal of 12400763 is 36700421.

12400763 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36700421 = 167 ⋅219763.

It is a cyclic number.

It is not a de Polignac number, because 12400763 - 2⁶ = 12400699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670 + ... + 5252.

It is an arithmetic number, because the mean of its divisors is an integer number (3101952).

Almost surely, 2^12400763 is an apocalyptic number.

12400763 is a deficient number, since it is larger than the sum of its proper divisors (7045).

12400763 is an equidigital number, since it uses as much as digits as its factorization.

12400763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 12400763 is about 3521.4717093852. The cubic root of 12400763 is about 231.4636527516.

The spelling of 12400763 in words is "twelve million, four hundred thousand, seven hundred sixty-three".