3923889 has 16 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 2408192.

The previous prime is 3923867. The next prime is 3923893. The reversal of 3923889 is 9883293.

It is a cyclic number.

It is not a de Polignac number, because 3923889 - 2⁷ = 3923761 is a prime.

It is a super-3 number, since 3×3923889³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3923889.

It is not an unprimeable number, because it can be changed into a prime (3923839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579 + ... + 3215.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^3923889 is an apocalyptic number.

It is an amenable number.

3923889 is a deficient number, since it is larger than the sum of its proper divisors (1737039).

3923889 is a wasteful number, since it uses less digits than its factorization.

3923889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its digits is 93312, while the sum is 42.

The square root of 3923889 is about 1980.8808646660. The cubic root of 3923889 is about 157.7268286235.

The spelling of 3923889 in words is "three million, nine hundred twenty-three thousand, eight hundred eighty-nine".