13445679 has 16 divisors (see below), whose sum is σ = 19386752. Its totient is φ = 8239968.

The previous prime is 13445659. The next prime is 13445683. The reversal of 13445679 is 97654431.

It is not a de Polignac number, because 13445679 - 2⁹ = 13445167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11412 + ... + 12534.

It is an arithmetic number, because the mean of its divisors is an integer number (1211672).

Almost surely, 2^13445679 is an apocalyptic number.

13445679 is a deficient number, since it is larger than the sum of its proper divisors (5941073).

13445679 is a wasteful number, since it uses less digits than its factorization.

13445679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its digits is 90720, while the sum is 39.

The square root of 13445679 is about 3666.8350112870. The cubic root of 13445679 is about 237.7903610267.

The spelling of 13445679 in words is "thirteen million, four hundred forty-five thousand, six hundred seventy-nine".