12929990 has 8 divisors (see below), whose sum is σ = 23274000. Its totient is φ = 5171992.

The previous prime is 12929981. The next prime is 12929999. The reversal of 12929990 is 9992921.

12929990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12929981) and next prime (12929999).

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 (12929999) 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, 646490 + ... + 646509.

It is an arithmetic number, because the mean of its divisors is an integer number (2909250).

Almost surely, 2^12929990 is an apocalyptic number.

12929990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12929990 is a deficient number, since it is larger than the sum of its proper divisors (10344010).

12929990 is a wasteful number, since it uses less digits than its factorization.

12929990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293006.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 12929990 is about 3595.8295287736. The cubic root of 12929990 is about 234.7106140610.

The spelling of 12929990 in words is "twelve million, nine hundred twenty-nine thousand, nine hundred ninety".