12622566 has 16 divisors (see below), whose sum is σ = 27540288. Its totient is φ = 3825000.

The previous prime is 12622559. The next prime is 12622573. The reversal of 12622566 is 66522621.

It is an interprime number because it is at equal distance from previous prime (12622559) and next prime (12622573).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 95560 + ... + 95691.

It is an arithmetic number, because the mean of its divisors is an integer number (1721268).

Almost surely, 2^12622566 is an apocalyptic number.

12622566 is an abundant number, since it is smaller than the sum of its proper divisors (14917722).

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

12622566 is a wasteful number, since it uses less digits than its factorization.

12622566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191267.

The product of its digits is 8640, while the sum is 30.

The square root of 12622566 is about 3552.8250730932. The cubic root of 12622566 is about 232.8355105193.

It can be divided in two parts, 1262 and 2566, that added together give a triangular number (3828 = T₈₇).

The spelling of 12622566 in words is "twelve million, six hundred twenty-two thousand, five hundred sixty-six".