6423984 has 60 divisors (see below), whose sum is σ = 20549776. Its totient is φ = 1835136.

The previous prime is 6423953. The next prime is 6423997. The reversal of 6423984 is 4893246.

It is a happy number.

6423984 is a `hidden beast` number, since 642 + 3 + 9 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 6⁶ + 4 + 2³ + 3¹³ + 9⁷ + 8 + 4² .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2179 + ... + 4194.

Almost surely, 2^6423984 is an apocalyptic number.

It is an amenable number.

6423984 is an abundant number, since it is smaller than the sum of its proper divisors (14125792).

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

6423984 is a wasteful number, since it uses less digits than its factorization.

6423984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394 (or 6385 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6423984 is about 2534.5579496236. The cubic root of 6423984 is about 185.8951889556.

The spelling of 6423984 in words is "six million, four hundred twenty-three thousand, nine hundred eighty-four".