12928619 has 16 divisors (see below), whose sum is σ = 15261696. Its totient is φ = 10819200.

The previous prime is 12928613. The next prime is 12928621. The reversal of 12928619 is 91682921.

12928619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12928619 - 2¹⁶ = 12863083 is a prime.

It is a super-2 number, since 2×12928619² = 334298378494322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12928613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8054 + ... + 9524.

It is an arithmetic number, because the mean of its divisors is an integer number (953856).

Almost surely, 2^12928619 is an apocalyptic number.

12928619 is a deficient number, since it is larger than the sum of its proper divisors (2333077).

12928619 is a wasteful number, since it uses less digits than its factorization.

12928619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546.

The product of its digits is 15552, while the sum is 38.

The square root of 12928619 is about 3595.6388862065. The cubic root of 12928619 is about 234.7023181117.

The spelling of 12928619 in words is "twelve million, nine hundred twenty-eight thousand, six hundred nineteen".