12929550 has 24 divisors (see below), whose sum is σ = 32065656. Its totient is φ = 3447840.

The previous prime is 12929549. The next prime is 12929551. The reversal of 12929550 is 5592921.

It is an interprime number because it is at equal distance from previous prime (12929549) and next prime (12929551).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12929551) 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, 42949 + ... + 43248.

It is an arithmetic number, because the mean of its divisors is an integer number (1336069).

Almost surely, 2^12929550 is an apocalyptic number.

12929550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12929550 is an abundant number, since it is smaller than the sum of its proper divisors (19136106).

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

12929550 is a wasteful number, since it uses less digits than its factorization.

12929550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86212 (or 86207 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 12929550 is about 3595.7683462648. The cubic root of 12929550 is about 234.7079516758.

The spelling of 12929550 in words is "twelve million, nine hundred twenty-nine thousand, five hundred fifty".