12398776 has 32 divisors (see below), whose sum is σ = 25905600. Its totient is φ = 5523840.

The previous prime is 12398759. The next prime is 12398777. The reversal of 12398776 is 67789321.

It is a happy number.

12398776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12398777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (809550).

Almost surely, 2^12398776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12398776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12952800).

12398776 is an abundant number, since it is smaller than the sum of its proper divisors (13506824).

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

12398776 is a wasteful number, since it uses less digits than its factorization.

12398776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159 (or 4155 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 12398776 is about 3521.1895717215. The cubic root of 12398776 is about 231.4512894574.

The spelling of 12398776 in words is "twelve million, three hundred ninety-eight thousand, seven hundred seventy-six".