12197407 has 4 divisors (see below), whose sum is σ = 12260800. Its totient is φ = 12134016.

The previous prime is 12197399. The next prime is 12197413. The reversal of 12197407 is 70479121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12197407 - 2³ = 12197399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192407) 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, 31407 + ... + 31792.

It is an arithmetic number, because the mean of its divisors is an integer number (3065200).

Almost surely, 2^12197407 is an apocalyptic number.

12197407 is a deficient number, since it is larger than the sum of its proper divisors (63393).

12197407 is an equidigital number, since it uses as much as digits as its factorization.

12197407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63392.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 12197407 is about 3492.4786327192. The cubic root of 12197407 is about 230.1914411134.

The spelling of 12197407 in words is "twelve million, one hundred ninety-seven thousand, four hundred seven".