13989435 has 16 divisors (see below), whose sum is σ = 22751520. Its totient is φ = 7338240.

The previous prime is 13989433. The next prime is 13989449. The reversal of 13989435 is 53498931.

It is not a de Polignac number, because 13989435 - 2¹ = 13989433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13989433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6730 + ... + 8559.

It is an arithmetic number, because the mean of its divisors is an integer number (1421970).

Almost surely, 2^13989435 is an apocalyptic number.

13989435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13989435 is a deficient number, since it is larger than the sum of its proper divisors (8762085).

13989435 is a wasteful number, since it uses less digits than its factorization.

13989435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15358.

The product of its digits is 116640, while the sum is 42.

The square root of 13989435 is about 3740.2453128104. The cubic root of 13989435 is about 240.9535846058.

The spelling of 13989435 in words is "thirteen million, nine hundred eighty-nine thousand, four hundred thirty-five".