12998785 has 8 divisors (see below), whose sum is σ = 15624000. Its totient is φ = 10382064.

The previous prime is 12998767. The next prime is 12998789. The reversal of 12998785 is 58789921.

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 12998785 - 2⁵ = 12998753 is a prime.

It is a super-2 number, since 2×12998785² = 337936822952450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12998789) 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, 1966 + ... + 5464.

It is an arithmetic number, because the mean of its divisors is an integer number (1953000).

Almost surely, 2^12998785 is an apocalyptic number.

It is an amenable number.

12998785 is a deficient number, since it is larger than the sum of its proper divisors (2625215).

12998785 is an equidigital number, since it uses as much as digits as its factorization.

12998785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247.

The product of its digits is 362880, while the sum is 49.

The square root of 12998785 is about 3605.3827813424. The cubic root of 12998785 is about 235.1261432319.

The spelling of 12998785 in words is "twelve million, nine hundred ninety-eight thousand, seven hundred eighty-five".