13958749 has 8 divisors (see below), whose sum is σ = 16792640. Its totient is φ = 11334816.

The previous prime is 13958743. The next prime is 13958759. The reversal of 13958749 is 94785931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13958749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13958699 and 13958708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13958743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52344 + ... + 52609.

It is an arithmetic number, because the mean of its divisors is an integer number (2099080).

Almost surely, 2^13958749 is an apocalyptic number.

13958749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13958749 is a deficient number, since it is larger than the sum of its proper divisors (2833891).

13958749 is a wasteful number, since it uses less digits than its factorization.

13958749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104979.

The product of its digits is 272160, while the sum is 46.

The square root of 13958749 is about 3736.1409234664. The cubic root of 13958749 is about 240.7772774021. Note that the first 3 decimals are identical.

The spelling of 13958749 in words is "thirteen million, nine hundred fifty-eight thousand, seven hundred forty-nine".