12602621 has 4 divisors (see below), whose sum is σ = 12910044. Its totient is φ = 12295200.

The previous prime is 12602587. The next prime is 12602641. The reversal of 12602621 is 12620621.

It is a happy number.

12602621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12620621 = 13 ⋅970817.

It can be written as a sum of positive squares in 2 ways, for example, as 624100 + 11978521 = 790^2 + 3461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12602621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12602593 and 12602602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12602641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153650 + ... + 153731.

It is an arithmetic number, because the mean of its divisors is an integer number (3227511).

Almost surely, 2^12602621 is an apocalyptic number.

It is an amenable number.

12602621 is a deficient number, since it is larger than the sum of its proper divisors (307423).

12602621 is an equidigital number, since it uses as much as digits as its factorization.

12602621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307422.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12602621 is about 3550.0170422126. The cubic root of 12602621 is about 232.7128108939.

The spelling of 12602621 in words is "twelve million, six hundred two thousand, six hundred twenty-one".