12710621 has 16 divisors (see below), whose sum is σ = 15925248. Its totient is φ = 9855600.

The previous prime is 12710609. The next prime is 12710627. The reversal of 12710621 is 12601721.

It is a cyclic number.

It is not a de Polignac number, because 12710621 - 2⁶ = 12710557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12710593 and 12710602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12710627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29276 + ... + 29706.

It is an arithmetic number, because the mean of its divisors is an integer number (995328).

Almost surely, 2^12710621 is an apocalyptic number.

12710621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12710621 is a deficient number, since it is larger than the sum of its proper divisors (3214627).

12710621 is a wasteful number, since it uses less digits than its factorization.

12710621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12710621 is about 3565.1957870501. The cubic root of 12710621 is about 233.3756764425.

Subtracting from 12710621 its reverse (12601721), we obtain a square (108900 = 330²).

It can be divided in two parts, 12710 and 621, that added together give a palindrome (13331).

The spelling of 12710621 in words is "twelve million, seven hundred ten thousand, six hundred twenty-one".