12621774 has 48 divisors (see below), whose sum is σ = 28598400. Its totient is φ = 3682800.

The previous prime is 12621767. The next prime is 12621781. The reversal of 12621774 is 47712621.

12621774 = T₂₅₂ + T₂₅₃ + ... + T₄₅₀.

12621774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12621767) and next prime (12621781).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63327 + ... + 63525.

It is an arithmetic number, because the mean of its divisors is an integer number (595800).

Almost surely, 2^12621774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12621774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14299200).

12621774 is an abundant number, since it is smaller than the sum of its proper divisors (15976626).

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

12621774 is a wasteful number, since it uses less digits than its factorization.

12621774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 246 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 12621774 is about 3552.7136107488. The cubic root of 12621774 is about 232.8306406806.

The spelling of 12621774 in words is "twelve million, six hundred twenty-one thousand, seven hundred seventy-four".