7871898 has 32 divisors (see below), whose sum is σ = 16470720. Its totient is φ = 2505600.

The previous prime is 7871893. The next prime is 7871917. The reversal of 7871898 is 8981787.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7871893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12798 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (514710).

Almost surely, 2^7871898 is an apocalyptic number.

7871898 is an abundant number, since it is smaller than the sum of its proper divisors (8598822).

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

7871898 is a wasteful number, since it uses less digits than its factorization.

7871898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its digits is 225792, while the sum is 48.

The square root of 7871898 is about 2805.6902893940. The cubic root of 7871898 is about 198.9267341377.

The spelling of 7871898 in words is "seven million, eight hundred seventy-one thousand, eight hundred ninety-eight".