13858949 has 8 divisors (see below), whose sum is σ = 15574272. Its totient is φ = 12236400.

The previous prime is 13858939. The next prime is 13858967. The reversal of 13858949 is 94985831.

13858949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13858949 - 2¹⁶ = 13793413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13858909) 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, 22877 + ... + 23474.

It is an arithmetic number, because the mean of its divisors is an integer number (1946784).

Almost surely, 2^13858949 is an apocalyptic number.

It is an amenable number.

13858949 is a deficient number, since it is larger than the sum of its proper divisors (1715323).

13858949 is a wasteful number, since it uses less digits than its factorization.

13858949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46387.

The product of its digits is 311040, while the sum is 47.

The square root of 13858949 is about 3722.7609377987. The cubic root of 13858949 is about 240.2020809567.

The spelling of 13858949 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred forty-nine".