12968658 has 12 divisors (see below), whose sum is σ = 28098798. Its totient is φ = 4322880.

The previous prime is 12968653. The next prime is 12968687. The reversal of 12968658 is 85686921.

12968658 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11675889 + 1292769 = 3417^2 + 1137^2 .

It is not an unprimeable number, because it can be changed into a prime (12968651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360223 + ... + 360258.

Almost surely, 2^12968658 is an apocalyptic number.

12968658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12968658 is an abundant number, since it is smaller than the sum of its proper divisors (15130140).

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

12968658 is a wasteful number, since it uses less digits than its factorization.

12968658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720489 (or 720486 counting only the distinct ones).

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

The square root of 12968658 is about 3601.2022992329. The cubic root of 12968658 is about 234.9443538080.

The spelling of 12968658 in words is "twelve million, nine hundred sixty-eight thousand, six hundred fifty-eight".