13828631 has 2 divisors, whose sum is σ = 13828632. Its totient is φ = 13828630.

The previous prime is 13828583. The next prime is 13828651. The reversal of 13828631 is 13682831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13828631 - 2²² = 9634327 is a prime.

It is a super-3 number, since 3×13828631³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13828651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6914315 + 6914316.

It is an arithmetic number, because the mean of its divisors is an integer number (6914316).

Almost surely, 2^13828631 is an apocalyptic number.

13828631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13828631 is an equidigital number, since it uses as much as digits as its factorization.

13828631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 13828631 is about 3718.6867305542. The cubic root of 13828631 is about 240.0267967765.

The spelling of 13828631 in words is "thirteen million, eight hundred twenty-eight thousand, six hundred thirty-one".