12747830 has 16 divisors (see below), whose sum is σ = 23076144. Its totient is φ = 5070240.

The previous prime is 12747827. The next prime is 12747853. The reversal of 12747830 is 3874721.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (1442259).

Almost surely, 2^12747830 is an apocalyptic number.

12747830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12747830 is a deficient number, since it is larger than the sum of its proper divisors (10328314).

12747830 is a wasteful number, since it uses less digits than its factorization.

12747830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12747830 is about 3570.4103405631. The cubic root of 12747830 is about 233.6031821320.

The spelling of 12747830 in words is "twelve million, seven hundred forty-seven thousand, eight hundred thirty".