12197970 has 24 divisors (see below), whose sum is σ = 31714956. Its totient is φ = 3252768.

The previous prime is 12197963. The next prime is 12197971. The reversal of 12197970 is 7979121.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 233289 = 3459^2 + 483^2 .

It is not an unprimeable number, because it can be changed into a prime (12197971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67677 + ... + 67856.

Almost surely, 2^12197970 is an apocalyptic number.

12197970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12197970 is an abundant number, since it is smaller than the sum of its proper divisors (19516986).

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

12197970 is a wasteful number, since it uses less digits than its factorization.

12197970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135546 (or 135543 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 12197970 is about 3492.5592335707. The cubic root of 12197970 is about 230.1949827346.

The spelling of 12197970 in words is "twelve million, one hundred ninety-seven thousand, nine hundred seventy".