12197870 has 8 divisors (see below), whose sum is σ = 21956184. Its totient is φ = 4879144.

The previous prime is 12197851. The next prime is 12197879. The reversal of 12197870 is 7879121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12197870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609884 + ... + 609903.

It is an arithmetic number, because the mean of its divisors is an integer number (2744523).

Almost surely, 2^12197870 is an apocalyptic number.

12197870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12197870 is a deficient number, since it is larger than the sum of its proper divisors (9758314).

12197870 is a wasteful number, since it uses less digits than its factorization.

12197870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219794.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 12197870 is about 3492.5449173919. The cubic root of 12197870 is about 230.1943536802.

The spelling of 12197870 in words is "twelve million, one hundred ninety-seven thousand, eight hundred seventy".