7998134 has 4 divisors (see below), whose sum is σ = 11997204. Its totient is φ = 3999066.

The previous prime is 7998119. The next prime is 7998139. The reversal of 7998134 is 4318997.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 7998091 and 7998100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999532 + ... + 1999535.

It is an arithmetic number, because the mean of its divisors is an integer number (2999301).

Almost surely, 2^7998134 is an apocalyptic number.

7998134 is a deficient number, since it is larger than the sum of its proper divisors (3999070).

7998134 is a wasteful number, since it uses less digits than its factorization.

7998134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999069.

The product of its digits is 54432, while the sum is 41.

The square root of 7998134 is about 2828.0972401953. The cubic root of 7998134 is about 199.9844487908.

The spelling of 7998134 in words is "seven million, nine hundred ninety-eight thousand, one hundred thirty-four".