7998741 has 12 divisors (see below), whose sum is σ = 11607180. Its totient is φ = 5307840.

The previous prime is 7998719. The next prime is 7998743. The reversal of 7998741 is 1478997.

It can be written as a sum of positive squares in 2 ways, for example, as 6426225 + 1572516 = 2535^2 + 1254^2 .

It is not a de Polignac number, because 7998741 - 2¹⁷ = 7867669 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998743) 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 11 ways as a sum of consecutive naturals, for example, 121 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (967265).

Almost surely, 2^7998741 is an apocalyptic number.

It is an amenable number.

7998741 is a deficient number, since it is larger than the sum of its proper divisors (3608439).

7998741 is a wasteful number, since it uses less digits than its factorization.

7998741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116 (or 4113 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 7998741 is about 2828.2045541297. The cubic root of 7998741 is about 199.9895077829.

The spelling of 7998741 in words is "seven million, nine hundred ninety-eight thousand, seven hundred forty-one".