13988834 has 4 divisors (see below), whose sum is σ = 20983254. Its totient is φ = 6994416.

The previous prime is 13988827. The next prime is 13988839. The reversal of 13988834 is 43888931.

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

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 2449225 = 3397^2 + 1565^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13988839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3497207 + ... + 3497210.

Almost surely, 2^13988834 is an apocalyptic number.

13988834 is a deficient number, since it is larger than the sum of its proper divisors (6994420).

13988834 is an equidigital number, since it uses as much as digits as its factorization.

13988834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994419.

The product of its digits is 165888, while the sum is 44.

The square root of 13988834 is about 3740.1649696237. The cubic root of 13988834 is about 240.9501340215.

The spelling of 13988834 in words is "thirteen million, nine hundred eighty-eight thousand, eight hundred thirty-four".