12783070 has 32 divisors (see below), whose sum is σ = 23794560. Its totient is φ = 4942080.

The previous prime is 12783049. The next prime is 12783077. The reversal of 12783070 is 7038721.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12783077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47035 + ... + 47305.

It is an arithmetic number, because the mean of its divisors is an integer number (743580).

Almost surely, 2^12783070 is an apocalyptic number.

12783070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12783070 is a deficient number, since it is larger than the sum of its proper divisors (11011490).

12783070 is a wasteful number, since it uses less digits than its factorization.

12783070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 12783070 is about 3575.3419416889. The cubic root of 12783070 is about 233.8182410116.

The spelling of 12783070 in words is "twelve million, seven hundred eighty-three thousand, seventy".