12787797 has 8 divisors (see below), whose sum is σ = 18600480. Its totient is φ = 7750160.

The previous prime is 12787783. The next prime is 12787799. The reversal of 12787797 is 79778721.

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

It is not a de Polignac number, because 12787797 - 2⁴ = 12787781 is a prime.

It is a super-2 number, since 2×12787797² = 327055504226418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787799) 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, 193722 + ... + 193787.

It is an arithmetic number, because the mean of its divisors is an integer number (2325060).

Almost surely, 2^12787797 is an apocalyptic number.

It is an amenable number.

12787797 is a deficient number, since it is larger than the sum of its proper divisors (5812683).

12787797 is a wasteful number, since it uses less digits than its factorization.

12787797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387523.

The product of its digits is 345744, while the sum is 48.

The square root of 12787797 is about 3576.0029362404. The cubic root of 12787797 is about 233.8470583619.

The spelling of 12787797 in words is "twelve million, seven hundred eighty-seven thousand, seven hundred ninety-seven".