7990271 has 4 divisors (see below), whose sum is σ = 7999200. Its totient is φ = 7981344.

The previous prime is 7990259. The next prime is 7990273. The reversal of 7990271 is 1720997.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1720997 = 1063 ⋅1619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7990271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7990273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2951 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (1999800).

Almost surely, 2^7990271 is an apocalyptic number.

7990271 is a deficient number, since it is larger than the sum of its proper divisors (8929).

7990271 is a wasteful number, since it uses less digits than its factorization.

7990271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8928.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 7990271 is about 2826.7067410681. The cubic root of 7990271 is about 199.9188921120.

The spelling of 7990271 in words is "seven million, nine hundred ninety thousand, two hundred seventy-one".