7998506 has 8 divisors (see below), whose sum is σ = 12629280. Its totient is φ = 3788748.

The previous prime is 7998491. The next prime is 7998509. The reversal of 7998506 is 6058997.

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

It is not an unprimeable number, because it can be changed into a prime (7998509) 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, 105206 + ... + 105281.

It is an arithmetic number, because the mean of its divisors is an integer number (1578660).

Almost surely, 2^7998506 is an apocalyptic number.

7998506 is a deficient number, since it is larger than the sum of its proper divisors (4630774).

7998506 is a wasteful number, since it uses less digits than its factorization.

7998506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210508.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 7998506 is about 2828.1630080319. The cubic root of 7998506 is about 199.9875492249.

The spelling of 7998506 in words is "seven million, nine hundred ninety-eight thousand, five hundred six".