3856998 has 8 divisors (see below), whose sum is σ = 7714008. Its totient is φ = 1285664.

The previous prime is 3856997. The next prime is 3856999. The reversal of 3856998 is 8996583.

It is an interprime number because it is at equal distance from previous prime (3856997) and next prime (3856999).

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

3856998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321411 + ... + 321422.

It is an arithmetic number, because the mean of its divisors is an integer number (964251).

Almost surely, 2^3856998 is an apocalyptic number.

3856998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3856998 is a wasteful number, since it uses less digits than its factorization.

3856998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642838.

The product of its digits is 466560, while the sum is 48.

The square root of 3856998 is about 1963.9241329542. The cubic root of 3856998 is about 156.8254243013.

The spelling of 3856998 in words is "three million, eight hundred fifty-six thousand, nine hundred ninety-eight".