12997430 has 8 divisors (see below), whose sum is σ = 23395392. Its totient is φ = 5198968.

The previous prime is 12997421. The next prime is 12997433. The reversal of 12997430 is 3479921.

12997430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649862 + ... + 649881.

It is an arithmetic number, because the mean of its divisors is an integer number (2924424).

Almost surely, 2^12997430 is an apocalyptic number.

12997430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12997430 is a deficient number, since it is larger than the sum of its proper divisors (10397962).

12997430 is a wasteful number, since it uses less digits than its factorization.

12997430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299750.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 12997430 is about 3605.1948629720. The cubic root of 12997430 is about 235.1179730582.

The spelling of 12997430 in words is "twelve million, nine hundred ninety-seven thousand, four hundred thirty".