12975870 has 32 divisors (see below), whose sum is σ = 31674240. Its totient is φ = 3401120.

The previous prime is 12975869. The next prime is 12975871. The reversal of 12975870 is 7857921.

It is an interprime number because it is at equal distance from previous prime (12975869) and next prime (12975871).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975871) 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, 1896 + ... + 5435.

It is an arithmetic number, because the mean of its divisors is an integer number (989820).

Almost surely, 2^12975870 is an apocalyptic number.

12975870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12975870 is an abundant number, since it is smaller than the sum of its proper divisors (18698370).

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

12975870 is a wasteful number, since it uses less digits than its factorization.

12975870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12975870 is about 3602.2034923086. The cubic root of 12975870 is about 234.9878973698.

The spelling of 12975870 in words is "twelve million, nine hundred seventy-five thousand, eight hundred seventy".