12887378 has 16 divisors (see below), whose sum is σ = 22343040. Its totient is φ = 5460576.

The previous prime is 12887341. The next prime is 12887389. The reversal of 12887378 is 87378821.

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, 3926 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (1396440).

Almost surely, 2^12887378 is an apocalyptic number.

12887378 is a deficient number, since it is larger than the sum of its proper divisors (9455662).

12887378 is a wasteful number, since it uses less digits than its factorization.

12887378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441.

The product of its digits is 150528, while the sum is 44.

The square root of 12887378 is about 3589.8994414886. The cubic root of 12887378 is about 234.4524933201.

The spelling of 12887378 in words is "twelve million, eight hundred eighty-seven thousand, three hundred seventy-eight".