13213672 has 16 divisors (see below), whose sum is σ = 24825060. Its totient is φ = 6593664.

The previous prime is 13213667. The next prime is 13213679. The reversal of 13213672 is 27631231.

It can be written as a sum of positive squares in 2 ways, for example, as 8608356 + 4605316 = 2934^2 + 2146^2 .

It is a super-2 number, since 2×13213672² = 349202255447168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13213679) 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, 3598 + ... + 6274.

Almost surely, 2^13213672 is an apocalyptic number.

It is an amenable number.

13213672 is a deficient number, since it is larger than the sum of its proper divisors (11611388).

13213672 is a wasteful number, since it uses less digits than its factorization.

13213672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300 (or 3296 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 13213672 is about 3635.0614850371. The cubic root of 13213672 is about 236.4147165558.

The spelling of 13213672 in words is "thirteen million, two hundred thirteen thousand, six hundred seventy-two".