13216998 has 16 divisors (see below), whose sum is σ = 26521200. Its totient is φ = 4391136.

The previous prime is 13216997. The next prime is 13216999. The reversal of 13216998 is 89961231.

It is an interprime number because it is at equal distance from previous prime (13216997) and next prime (13216999).

It is a super-2 number, since 2×13216998² = 349378072264008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (1657575).

Almost surely, 2^13216998 is an apocalyptic number.

13216998 is an abundant number, since it is smaller than the sum of its proper divisors (13304202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13216998 is a wasteful number, since it uses less digits than its factorization.

13216998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7271.

The product of its digits is 23328, while the sum is 39.

The square root of 13216998 is about 3635.5189450751. The cubic root of 13216998 is about 236.4345507947.

The spelling of 13216998 in words is "thirteen million, two hundred sixteen thousand, nine hundred ninety-eight".