13858491 has 8 divisors (see below), whose sum is σ = 19115280. Its totient is φ = 8920352.

The previous prime is 13858469. The next prime is 13858499. The reversal of 13858491 is 19485831.

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 13858491 - 2⁷ = 13858363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13858499) 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, 79560 + ... + 79733.

It is an arithmetic number, because the mean of its divisors is an integer number (2389410).

Almost surely, 2^13858491 is an apocalyptic number.

13858491 is a deficient number, since it is larger than the sum of its proper divisors (5256789).

13858491 is a wasteful number, since it uses less digits than its factorization.

13858491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159325.

The product of its digits is 34560, while the sum is 39.

The square root of 13858491 is about 3722.6994238053. The cubic root of 13858491 is about 240.1994349223.

The spelling of 13858491 in words is "thirteen million, eight hundred fifty-eight thousand, four hundred ninety-one".