3858949 has 8 divisors (see below), whose sum is σ = 4181760. Its totient is φ = 3546816.

The previous prime is 3858947. The next prime is 3858971. The reversal of 3858949 is 9498583.

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 3858949 - 2¹ = 3858947 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3858899 and 3858908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858941) 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, 1909 + ... + 3370.

It is an arithmetic number, because the mean of its divisors is an integer number (522720).

Almost surely, 2^3858949 is an apocalyptic number.

It is an amenable number.

3858949 is a deficient number, since it is larger than the sum of its proper divisors (322811).

3858949 is a wasteful number, since it uses less digits than its factorization.

3858949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339.

The product of its digits is 311040, while the sum is 46.

The square root of 3858949 is about 1964.4207797720. The cubic root of 3858949 is about 156.8518623781.

The spelling of 3858949 in words is "three million, eight hundred fifty-eight thousand, nine hundred forty-nine".