6639098 has 8 divisors (see below), whose sum is σ = 10146708. Its totient is φ = 3256864.

The previous prime is 6639077. The next prime is 6639107. The reversal of 6639098 is 8909366.

It can be written as a sum of positive squares in 2 ways, for example, as 6620329 + 18769 = 2573^2 + 137^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31211 + ... + 31422.

Almost surely, 2^6639098 is an apocalyptic number.

6639098 is a deficient number, since it is larger than the sum of its proper divisors (3507610).

6639098 is a wasteful number, since it uses less digits than its factorization.

6639098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62688.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 6639098 is about 2576.6447174572. The cubic root of 6639098 is about 187.9474162579.

The spelling of 6639098 in words is "six million, six hundred thirty-nine thousand, ninety-eight".