7998711 has 12 divisors (see below), whose sum is σ = 12406392. Its totient is φ = 4570608.

The previous prime is 7998703. The next prime is 7998719. The reversal of 7998711 is 1178997.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7998703) and next prime (7998719).

It is not a de Polignac number, because 7998711 - 2³ = 7998703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27060 + ... + 27353.

It is an arithmetic number, because the mean of its divisors is an integer number (1033866).

Almost surely, 2^7998711 is an apocalyptic number.

7998711 is a deficient number, since it is larger than the sum of its proper divisors (4407681).

7998711 is a wasteful number, since it uses less digits than its factorization.

7998711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54430 (or 54423 counting only the distinct ones).

The product of its digits is 31752, while the sum is 42.

The square root of 7998711 is about 2828.1992504065. The cubic root of 7998711 is about 199.9892577564.

It can be divided in two parts, 79 and 98711, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 7998711 in words is "seven million, nine hundred ninety-eight thousand, seven hundred eleven".