12979550 has 24 divisors (see below), whose sum is σ = 24707496. Its totient is φ = 5070240.

The previous prime is 12979543. The next prime is 12979553. The reversal of 12979550 is 5597921.

12979550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869 + ... + 5168.

It is an arithmetic number, because the mean of its divisors is an integer number (1029479).

Almost surely, 2^12979550 is an apocalyptic number.

12979550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12979550 is a deficient number, since it is larger than the sum of its proper divisors (11727946).

12979550 is a wasteful number, since it uses less digits than its factorization.

12979550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6092 (or 6087 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 12979550 is about 3602.7142545586. The cubic root of 12979550 is about 235.0101097205.

The spelling of 12979550 in words is "twelve million, nine hundred seventy-nine thousand, five hundred fifty".