12780470 has 8 divisors (see below), whose sum is σ = 23004864. Its totient is φ = 5112184.

The previous prime is 12780409. The next prime is 12780511. The reversal of 12780470 is 7408721.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 639014 + ... + 639033.

It is an arithmetic number, because the mean of its divisors is an integer number (2875608).

Almost surely, 2^12780470 is an apocalyptic number.

12780470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12780470 is a deficient number, since it is larger than the sum of its proper divisors (10224394).

12780470 is a wasteful number, since it uses less digits than its factorization.

12780470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278054.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12780470 is about 3574.9783216126. The cubic root of 12780470 is about 233.8023875261.

The spelling of 12780470 in words is "twelve million, seven hundred eighty thousand, four hundred seventy".