12400797 has 8 divisors (see below), whose sum is σ = 16814880. Its totient is φ = 8126960.

The previous prime is 12400793. The next prime is 12400847. The reversal of 12400797 is 79700421.

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

It is a cyclic number.

It is not a de Polignac number, because 12400797 - 2² = 12400793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400793) 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, 34854 + ... + 35207.

It is an arithmetic number, because the mean of its divisors is an integer number (2101860).

Almost surely, 2^12400797 is an apocalyptic number.

It is an amenable number.

12400797 is a deficient number, since it is larger than the sum of its proper divisors (4414083).

12400797 is an equidigital number, since it uses as much as digits as its factorization.

12400797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70123.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 12400797 is about 3521.4765369089. The cubic root of 12400797 is about 231.4638642912.

The spelling of 12400797 in words is "twelve million, four hundred thousand, seven hundred ninety-seven".