6671898 has 12 divisors (see below), whose sum is σ = 14455818. Its totient is φ = 2223960.

The previous prime is 6671893. The next prime is 6671921. The reversal of 6671898 is 8981766.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6671889 + 9 = 2583^2 + 3^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6671891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185313 + ... + 185348.

Almost surely, 2^6671898 is an apocalyptic number.

6671898 is an abundant number, since it is smaller than the sum of its proper divisors (7783920).

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

6671898 is a wasteful number, since it uses less digits than its factorization.

6671898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370669 (or 370666 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 6671898 is about 2583.0017421597. The cubic root of 6671898 is about 188.2564216367.

It can be divided in two parts, 6671 and 898, that added together give a square (7569 = 87²).

The spelling of 6671898 in words is "six million, six hundred seventy-one thousand, eight hundred ninety-eight".