6653998 has 8 divisors (see below), whose sum is σ = 10748808. Its totient is φ = 3071064.

The previous prime is 6653993. The next prime is 6654007. The reversal of 6653998 is 8993566.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6653993) 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, 127936 + ... + 127987.

It is an arithmetic number, because the mean of its divisors is an integer number (1343601).

Almost surely, 2^6653998 is an apocalyptic number.

6653998 is a deficient number, since it is larger than the sum of its proper divisors (4094810).

6653998 is a wasteful number, since it uses less digits than its factorization.

6653998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255938.

The product of its digits is 349920, while the sum is 46.

The square root of 6653998 is about 2579.5344541215. The cubic root of 6653998 is about 188.0879134628.

The spelling of 6653998 in words is "six million, six hundred fifty-three thousand, nine hundred ninety-eight".