12671790 has 16 divisors (see below), whose sum is σ = 30412368. Its totient is φ = 3379136.

The previous prime is 12671779. The next prime is 12671819. The reversal of 12671790 is 9717621.

12671790 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211167 + ... + 211226.

It is an arithmetic number, because the mean of its divisors is an integer number (1900773).

Almost surely, 2^12671790 is an apocalyptic number.

12671790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12671790 is an abundant number, since it is smaller than the sum of its proper divisors (17740578).

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

12671790 is a wasteful number, since it uses less digits than its factorization.

12671790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422403.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 12671790 is about 3559.7457774397. The cubic root of 12671790 is about 233.1377794651.

The spelling of 12671790 in words is "twelve million, six hundred seventy-one thousand, seven hundred ninety".