12785206 has 32 divisors (see below), whose sum is σ = 22947840. Its totient is φ = 5227200.

The previous prime is 12785203. The next prime is 12785209. The reversal of 12785206 is 60258721.

It is an interprime number because it is at equal distance from previous prime (12785203) and next prime (12785209).

It is a super-2 number, since 2×12785206² = 326922984924872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12785203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38461 + ... + 38791.

It is an arithmetic number, because the mean of its divisors is an integer number (717120).

Almost surely, 2^12785206 is an apocalyptic number.

12785206 is a deficient number, since it is larger than the sum of its proper divisors (10162634).

12785206 is a wasteful number, since it uses less digits than its factorization.

12785206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12785206 is about 3575.6406418990. The cubic root of 12785206 is about 233.8312636514.

The spelling of 12785206 in words is "twelve million, seven hundred eighty-five thousand, two hundred six".