13084021 has 2 divisors, whose sum is σ = 13084022. Its totient is φ = 13084020.

The previous prime is 13084013. The next prime is 13084031. The reversal of 13084021 is 12048031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12327121 + 756900 = 3511^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 13084021 - 2³ = 13084013 is a prime.

It is a super-5 number, since 5×13084021⁵ (a number of 37 digits) contains 55555 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13084021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13084031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6542010 + 6542011.

It is an arithmetic number, because the mean of its divisors is an integer number (6542011).

Almost surely, 2^13084021 is an apocalyptic number.

It is an amenable number.

13084021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13084021 is an equidigital number, since it uses as much as digits as its factorization.

13084021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13084021 is about 3617.1841258084. The cubic root of 13084021 is about 235.6389492594.

It can be divided in two parts, 1308 and 4021, that added together give a square (5329 = 73²).

The spelling of 13084021 in words is "thirteen million, eighty-four thousand, twenty-one".