6391698 has 8 divisors (see below), whose sum is σ = 12783408. Its totient is φ = 2130564.

The previous prime is 6391669. The next prime is 6391699. The reversal of 6391698 is 8961936.

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

6391698 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (6391699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532636 + ... + 532647.

It is an arithmetic number, because the mean of its divisors is an integer number (1597926).

Almost surely, 2^6391698 is an apocalyptic number.

6391698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6391698 is a wasteful number, since it uses less digits than its factorization.

6391698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065288.

The product of its digits is 69984, while the sum is 42.

The square root of 6391698 is about 2528.1807688534. The cubic root of 6391698 is about 185.5832384598.

The spelling of 6391698 in words is "six million, three hundred ninety-one thousand, six hundred ninety-eight".