12821354 has 24 divisors (see below), whose sum is σ = 23804640. Its totient is φ = 5071248.

The previous prime is 12821329. The next prime is 12821357. The reversal of 12821354 is 45312821.

12821354 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 (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12821357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (991860).

Almost surely, 2^12821354 is an apocalyptic number.

12821354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12821354 is a deficient number, since it is larger than the sum of its proper divisors (10983286).

12821354 is a wasteful number, since it uses less digits than its factorization.

12821354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5441 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 12821354 is about 3580.6918325932. The cubic root of 12821354 is about 234.0514290252.

The spelling of 12821354 in words is "twelve million, eight hundred twenty-one thousand, three hundred fifty-four".