12999970 has 16 divisors (see below), whose sum is σ = 23442048. Its totient is φ = 5190640.

The previous prime is 12999967. The next prime is 12999977. The reversal of 12999970 is 7999921.

It is a self number, because there is not a number n which added to its sum of digits gives 12999970.

It is not an unprimeable number, because it can be changed into a prime (12999977) by changing a digit.

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, 8397 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (1465128).

Almost surely, 2^12999970 is an apocalyptic number.

12999970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12999970 is a deficient number, since it is larger than the sum of its proper divisors (10442078).

12999970 is a wasteful number, since it uses less digits than its factorization.

12999970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345.

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 12999970 is about 3605.5471152101. The cubic root of 12999970 is about 235.1332879000.

The spelling of 12999970 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred seventy".