12873890 has 16 divisors (see below), whose sum is σ = 23344632. Its totient is φ = 5111424.

The previous prime is 12873871. The next prime is 12873943. The reversal of 12873890 is 9837821.

It can be written as a sum of positive squares in 4 ways, for example, as 6558721 + 6315169 = 2561^2 + 2513^2 .

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, 3329 + ... + 6068.

Almost surely, 2^12873890 is an apocalyptic number.

12873890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12873890 is a deficient number, since it is larger than the sum of its proper divisors (10470742).

12873890 is a wasteful number, since it uses less digits than its factorization.

12873890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12873890 is about 3588.0203455387. The cubic root of 12873890 is about 234.3706716830.

The spelling of 12873890 in words is "twelve million, eight hundred seventy-three thousand, eight hundred ninety".