13938698 has 4 divisors (see below), whose sum is σ = 20908050. Its totient is φ = 6969348.

The previous prime is 13938697. The next prime is 13938731. The reversal of 13938698 is 89683931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89683931 = 73 ⋅1228547.

It can be written as a sum of positive squares in only one way, i.e., 9966649 + 3972049 = 3157^2 + 1993^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13938697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3484673 + ... + 3484676.

Almost surely, 2^13938698 is an apocalyptic number.

13938698 is a deficient number, since it is larger than the sum of its proper divisors (6969352).

13938698 is an equidigital number, since it uses as much as digits as its factorization.

13938698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6969351.

The product of its digits is 279936, while the sum is 47.

The square root of 13938698 is about 3733.4565753468. The cubic root of 13938698 is about 240.6619342417.

The spelling of 13938698 in words is "thirteen million, nine hundred thirty-eight thousand, six hundred ninety-eight".