7947441 has 6 divisors (see below), whose sum is σ = 11479650. Its totient is φ = 5298288.

The previous prime is 7947431. The next prime is 7947461. The reversal of 7947441 is 1447497.

It can be written as a sum of positive squares in only one way, i.e., 5760000 + 2187441 = 2400^2 + 1479^2 .

It is not a de Polignac number, because 7947441 - 2⁵ = 7947409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7947396 and 7947405.

It is not an unprimeable number, because it can be changed into a prime (7947431) 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 5 ways as a sum of consecutive naturals, for example, 441516 + ... + 441533.

It is an arithmetic number, because the mean of its divisors is an integer number (1913275).

Almost surely, 2^7947441 is an apocalyptic number.

It is an amenable number.

7947441 is a deficient number, since it is larger than the sum of its proper divisors (3532209).

7947441 is a wasteful number, since it uses less digits than its factorization.

7947441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883055 (or 883052 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 7947441 is about 2819.1206075654. The cubic root of 7947441 is about 199.5610456335.

The spelling of 7947441 in words is "seven million, nine hundred forty-seven thousand, four hundred forty-one".