13552979 has 4 divisors (see below), whose sum is σ = 14785080. Its totient is φ = 12320880.

The previous prime is 13552969. The next prime is 13552991. The reversal of 13552979 is 97925531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13552979 - 2⁴ = 13552963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13552969) 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, 616034 + ... + 616055.

It is an arithmetic number, because the mean of its divisors is an integer number (3696270).

Almost surely, 2^13552979 is an apocalyptic number.

13552979 is a deficient number, since it is larger than the sum of its proper divisors (1232101).

13552979 is a wasteful number, since it uses less digits than its factorization.

13552979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232100.

The product of its digits is 85050, while the sum is 41.

The square root of 13552979 is about 3681.4370835314. The cubic root of 13552979 is about 238.4212287130.

It can be divided in two parts, 1355 and 2979, that added together give a palindrome (4334).

The spelling of 13552979 in words is "thirteen million, five hundred fifty-two thousand, nine hundred seventy-nine".