12986570 has 16 divisors (see below), whose sum is σ = 23874048. Its totient is φ = 5083920.

The previous prime is 12986563. The next prime is 12986579. The reversal of 12986570 is 7568921.

It is not an unprimeable number, because it can be changed into a prime (12986579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13346 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (1492128).

Almost surely, 2^12986570 is an apocalyptic number.

12986570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12986570 is a deficient number, since it is larger than the sum of its proper divisors (10887478).

12986570 is a wasteful number, since it uses less digits than its factorization.

12986570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27685.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 12986570 is about 3603.6883883044. The cubic root of 12986570 is about 235.0524705531.

The spelling of 12986570 in words is "twelve million, nine hundred eighty-six thousand, five hundred seventy".