7998535 has 4 divisors (see below), whose sum is σ = 9598248. Its totient is φ = 6398824.

The previous prime is 7998533. The next prime is 7998539. The reversal of 7998535 is 5358997.

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

It is a cyclic number.

It is not a de Polignac number, because 7998535 - 2¹ = 7998533 is a prime.

It is a Duffinian number.

7998535 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799849 + ... + 799858.

It is an arithmetic number, because the mean of its divisors is an integer number (2399562).

Almost surely, 2^7998535 is an apocalyptic number.

7998535 is a deficient number, since it is larger than the sum of its proper divisors (1599713).

7998535 is a wasteful number, since it uses less digits than its factorization.

7998535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599712.

The product of its digits is 340200, while the sum is 46.

The square root of 7998535 is about 2828.1681350302. The cubic root of 7998535 is about 199.9877909214.

The spelling of 7998535 in words is "seven million, nine hundred ninety-eight thousand, five hundred thirty-five".