7998291 has 32 divisors (see below), whose sum is σ = 13708800. Its totient is φ = 4514400.

The previous prime is 7998269. The next prime is 7998293. The reversal of 7998291 is 1928997.

7998291 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7998291 - 2¹¹ = 7996243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7998293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18880 + ... + 19298.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 2^7998291 is an apocalyptic number.

7998291 is a deficient number, since it is larger than the sum of its proper divisors (5710509).

7998291 is a wasteful number, since it uses less digits than its factorization.

7998291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 7998291 is about 2828.1249972376. The cubic root of 7998291 is about 199.9857573191.

The spelling of 7998291 in words is "seven million, nine hundred ninety-eight thousand, two hundred ninety-one".