6429998 has 8 divisors (see below), whose sum is σ = 9663192. Its totient is φ = 3208936.

The previous prime is 6429977. The next prime is 6430003. The reversal of 6429998 is 8999246.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565 + ... + 3912.

It is an arithmetic number, because the mean of its divisors is an integer number (1207899).

Almost surely, 2^6429998 is an apocalyptic number.

6429998 is a deficient number, since it is larger than the sum of its proper divisors (3233194).

6429998 is a wasteful number, since it uses less digits than its factorization.

6429998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066.

The product of its digits is 279936, while the sum is 47.

The square root of 6429998 is about 2535.7440722597. The cubic root of 6429998 is about 185.9531812634.

The spelling of 6429998 in words is "six million, four hundred twenty-nine thousand, nine hundred ninety-eight".