12747740 has 24 divisors (see below), whose sum is σ = 27050352. Its totient is φ = 5045760.

The previous prime is 12747703. The next prime is 12747751. The reversal of 12747740 is 4774721.

It is a junction number, because it is equal to n+sod(n) for n = 12747697 and 12747706.

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 in 7 ways as a sum of consecutive naturals, for example, 1346 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (1127098).

Almost surely, 2^12747740 is an apocalyptic number.

12747740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12747740 is an abundant number, since it is smaller than the sum of its proper divisors (14302612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12747740 is a wasteful number, since it uses less digits than its factorization.

12747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677 (or 6675 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 12747740 is about 3570.3977369475. The cubic root of 12747740 is about 233.6026323826.

The spelling of 12747740 in words is "twelve million, seven hundred forty-seven thousand, seven hundred forty".