13216994 has 8 divisors (see below), whose sum is σ = 22657728. Its totient is φ = 5664420.

The previous prime is 13216993. The next prime is 13216997. The reversal of 13216994 is 49961231.

13216994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×13216994⁴ (a number of 30 digits) contains 4444 as substring.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472022 + ... + 472049.

It is an arithmetic number, because the mean of its divisors is an integer number (2832216).

Almost surely, 2^13216994 is an apocalyptic number.

13216994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13216994 is a deficient number, since it is larger than the sum of its proper divisors (9440734).

13216994 is an equidigital number, since it uses as much as digits as its factorization.

13216994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944080.

The product of its digits is 11664, while the sum is 35.

The square root of 13216994 is about 3635.5183949473. The cubic root of 13216994 is about 236.4345269432.

The spelling of 13216994 in words is "thirteen million, two hundred sixteen thousand, nine hundred ninety-four".