13072889 has 2 divisors, whose sum is σ = 13072890. Its totient is φ = 13072888.

The previous prime is 13072861. The next prime is 13072921. The reversal of 13072889 is 98827031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13017664 + 55225 = 3608^2 + 235^2 .

It is an emirp because it is prime and its reverse (98827031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13072889 - 2¹⁶ = 13007353 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (13072859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6536444 + 6536445.

It is an arithmetic number, because the mean of its divisors is an integer number (6536445).

Almost surely, 2^13072889 is an apocalyptic number.

It is an amenable number.

13072889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13072889 is an equidigital number, since it uses as much as digits as its factorization.

13072889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 13072889 is about 3615.6450323559. The cubic root of 13072889 is about 235.5721024019.

The spelling of 13072889 in words is "thirteen million, seventy-two thousand, eight hundred eighty-nine".