6309998 has 4 divisors (see below), whose sum is σ = 9465000. Its totient is φ = 3154998.

The previous prime is 6309997. The next prime is 6310039. The reversal of 6309998 is 8999036.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6309997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577498 + ... + 1577501.

It is an arithmetic number, because the mean of its divisors is an integer number (2366250).

Almost surely, 2^6309998 is an apocalyptic number.

6309998 is a deficient number, since it is larger than the sum of its proper divisors (3155002).

6309998 is a wasteful number, since it uses less digits than its factorization.

6309998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155001.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 6309998 is about 2511.9709393223. The cubic root of 6309998 is about 184.7891242202.

The spelling of 6309998 in words is "six million, three hundred nine thousand, nine hundred ninety-eight".