13724417 has 4 divisors (see below), whose sum is σ = 15685056. Its totient is φ = 11763780.

The previous prime is 13724387. The next prime is 13724449. The reversal of 13724417 is 71442731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13724417 - 2¹⁶ = 13658881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13724417.

It is not an unprimeable number, because it can be changed into a prime (13724497) 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, 980309 + ... + 980322.

It is an arithmetic number, because the mean of its divisors is an integer number (3921264).

Almost surely, 2^13724417 is an apocalyptic number.

It is an amenable number.

13724417 is a deficient number, since it is larger than the sum of its proper divisors (1960639).

13724417 is an equidigital number, since it uses as much as digits as its factorization.

13724417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960638.

The product of its digits is 4704, while the sum is 29.

The square root of 13724417 is about 3704.6480264662. The cubic root of 13724417 is about 239.4223201312.

It can be divided in two parts, 13724 and 417, that added together give a palindrome (14141).

The spelling of 13724417 in words is "thirteen million, seven hundred twenty-four thousand, four hundred seventeen".