13698973 has 2 divisors, whose sum is σ = 13698974. Its totient is φ = 13698972.

The previous prime is 13698959. The next prime is 13698989. The reversal of 13698973 is 37989631.

13698973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12694969 + 1004004 = 3563^2 + 1002^2 .

It is an emirp because it is prime and its reverse (37989631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13698973 is a prime.

It is a super-2 number, since 2×13698973² = 375323722509458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13698173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6849486 + 6849487.

It is an arithmetic number, because the mean of its divisors is an integer number (6849487).

Almost surely, 2^13698973 is an apocalyptic number.

It is an amenable number.

13698973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13698973 is an equidigital number, since it uses as much as digits as its factorization.

13698973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 46.

The square root of 13698973 is about 3701.2123689408. The cubic root of 13698973 is about 239.2742718266.

The spelling of 13698973 in words is "thirteen million, six hundred ninety-eight thousand, nine hundred seventy-three".