6424999 has 8 divisors (see below), whose sum is σ = 7426080. Its totient is φ = 5444736.

The previous prime is 6424993. The next prime is 6425011. The reversal of 6424999 is 9994246.

6424999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6424999 - 2⁷ = 6424871 is a prime.

It is a super-2 number, since 2×6424999² = 82561224300002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424993) 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, 4534 + ... + 5779.

It is an arithmetic number, because the mean of its divisors is an integer number (928260).

Almost surely, 2^6424999 is an apocalyptic number.

6424999 is a deficient number, since it is larger than the sum of its proper divisors (1001081).

6424999 is a wasteful number, since it uses less digits than its factorization.

6424999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10409.

The product of its digits is 139968, while the sum is 43.

The square root of 6424999 is about 2534.7581738698. The cubic root of 6424999 is about 185.9049790215.

The spelling of 6424999 in words is "six million, four hundred twenty-four thousand, nine hundred ninety-nine".