6690898 has 8 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 3298260.

The previous prime is 6690881. The next prime is 6690899. The reversal of 6690898 is 8980966.

It is a happy number.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6690899) 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, 23418 + ... + 23701.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^6690898 is an apocalyptic number.

6690898 is a deficient number, since it is larger than the sum of its proper divisors (3487022).

6690898 is a wasteful number, since it uses less digits than its factorization.

6690898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47192.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 6690898 is about 2586.6770188796. The cubic root of 6690898 is about 188.4349556415.

The spelling of 6690898 in words is "six million, six hundred ninety thousand, eight hundred ninety-eight".