3884921 has 8 divisors (see below), whose sum is σ = 4006464. Its totient is φ = 3764880.

The previous prime is 3884917. The next prime is 3884929. The reversal of 3884921 is 1294883.

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 not a de Polignac number, because 3884921 - 2² = 3884917 is a prime.

It is a super-2 number, since 2×3884921² = 30185222352482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3884929) 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, 6911 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (500808).

Almost surely, 2^3884921 is an apocalyptic number.

It is an amenable number.

3884921 is a deficient number, since it is larger than the sum of its proper divisors (121543).

3884921 is a wasteful number, since it uses less digits than its factorization.

3884921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its digits is 13824, while the sum is 35.

The square root of 3884921 is about 1971.0202941624. The cubic root of 3884921 is about 157.2029641373.

The spelling of 3884921 in words is "three million, eight hundred eighty-four thousand, nine hundred twenty-one".