12958668 has 36 divisors (see below), whose sum is σ = 33212088. Its totient is φ = 4259520.

The previous prime is 12958633. The next prime is 12958691. The reversal of 12958668 is 86685921.

12958668 is a `hidden beast` number, since 1 + 2 + 9 + 586 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×12958668³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (922558).

Almost surely, 2^12958668 is an apocalyptic number.

12958668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12958668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16606044).

12958668 is an abundant number, since it is smaller than the sum of its proper divisors (20253420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12958668 is a wasteful number, since it uses less digits than its factorization.

12958668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014 (or 5009 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12958668 is about 3599.8149952463. The cubic root of 12958668 is about 234.8840109665.

The spelling of 12958668 in words is "twelve million, nine hundred fifty-eight thousand, six hundred sixty-eight".