12904386 has 32 divisors (see below), whose sum is σ = 28816128. Its totient is φ = 3818640.

The previous prime is 12904373. The next prime is 12904399. The reversal of 12904386 is 68340921.

12904386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12904373) and next prime (12904399).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565 + ... + 5111.

It is an arithmetic number, because the mean of its divisors is an integer number (900504).

Almost surely, 2^12904386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12904386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14408064).

12904386 is an abundant number, since it is smaller than the sum of its proper divisors (15911742).

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

12904386 is a wasteful number, since it uses less digits than its factorization.

12904386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12904386 is about 3592.2675290128. The cubic root of 12904386 is about 234.5555868303. Note that the first 4 decimals are identical.

The spelling of 12904386 in words is "twelve million, nine hundred four thousand, three hundred eighty-six".