12772631 has 4 divisors (see below), whose sum is σ = 12870264. Its totient is φ = 12675000.

The previous prime is 12772619. The next prime is 12772633. The reversal of 12772631 is 13627721.

12772631 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: 13627721 = 487 ⋅27983.

It is a cyclic number.

It is not a de Polignac number, because 12772631 - 2²² = 8578327 is a prime.

It is a super-2 number, since 2×12772631² = 326280205324322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12772594 and 12772603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772633) 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, 48620 + ... + 48881.

It is an arithmetic number, because the mean of its divisors is an integer number (3217566).

Almost surely, 2^12772631 is an apocalyptic number.

12772631 is a deficient number, since it is larger than the sum of its proper divisors (97633).

12772631 is an equidigital number, since it uses as much as digits as its factorization.

12772631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97632.

The product of its digits is 3528, while the sum is 29.

The square root of 12772631 is about 3573.8817831596. The cubic root of 12772631 is about 233.7545762495.

The spelling of 12772631 in words is "twelve million, seven hundred seventy-two thousand, six hundred thirty-one".