12785492 has 6 divisors (see below), whose sum is σ = 22374618. Its totient is φ = 6392744.

The previous prime is 12785483. The next prime is 12785501. The reversal of 12785492 is 29458721.

It is an interprime number because it is at equal distance from previous prime (12785483) and next prime (12785501).

It can be written as a sum of positive squares in only one way, i.e., 11262736 + 1522756 = 3356^2 + 1234^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1598183 + ... + 1598190.

It is an arithmetic number, because the mean of its divisors is an integer number (3729103).

Almost surely, 2^12785492 is an apocalyptic number.

It is an amenable number.

12785492 is a deficient number, since it is larger than the sum of its proper divisors (9589126).

12785492 is a wasteful number, since it uses less digits than its factorization.

12785492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196377 (or 3196375 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 12785492 is about 3575.6806345086. The cubic root of 12785492 is about 233.8330072094.

The spelling of 12785492 in words is "twelve million, seven hundred eighty-five thousand, four hundred ninety-two".