12720470 has 16 divisors (see below), whose sum is σ = 26167968. Its totient is φ = 4361280.

The previous prime is 12720457. The next prime is 12720479. The reversal of 12720470 is 7402721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90791 + ... + 90930.

It is an arithmetic number, because the mean of its divisors is an integer number (1635498).

Almost surely, 2^12720470 is an apocalyptic number.

12720470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12720470 is an abundant number, since it is smaller than the sum of its proper divisors (13447498).

12720470 is a wasteful number, since it uses less digits than its factorization.

12720470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181735.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 12720470 is about 3566.5767901449. The cubic root of 12720470 is about 233.4359390007.

The spelling of 12720470 in words is "twelve million, seven hundred twenty thousand, four hundred seventy".