13672969 has 4 divisors (see below), whose sum is σ = 13681044. Its totient is φ = 13664896.

The previous prime is 13672963. The next prime is 13672979. The reversal of 13672969 is 96927631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96927631 = 1951 ⋅49681.

It can be written as a sum of positive squares in 2 ways, for example, as 7912969 + 5760000 = 2813^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 13672969 - 2⁵ = 13672937 is a prime.

It is a super-2 number, since 2×13672969² = 373900162549922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13672963) 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, 412 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (3420261).

Almost surely, 2^13672969 is an apocalyptic number.

It is an amenable number.

13672969 is a deficient number, since it is larger than the sum of its proper divisors (8075).

13672969 is an equidigital number, since it uses as much as digits as its factorization.

13672969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074.

The product of its digits is 122472, while the sum is 43.

The square root of 13672969 is about 3697.6977972787. The cubic root of 13672969 is about 239.1227755712.

It can be divided in two parts, 13672 and 969, that added together give a palindrome (14641).

The spelling of 13672969 in words is "thirteen million, six hundred seventy-two thousand, nine hundred sixty-nine".