7947049 has 4 divisors (see below), whose sum is σ = 8669520. Its totient is φ = 7224580.

The previous prime is 7947013. The next prime is 7947053. The reversal of 7947049 is 9407497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7947049 - 2⁹ = 7946537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7947059) 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 3 ways as a sum of consecutive naturals, for example, 361219 + ... + 361240.

It is an arithmetic number, because the mean of its divisors is an integer number (2167380).

Almost surely, 2^7947049 is an apocalyptic number.

It is an amenable number.

7947049 is a deficient number, since it is larger than the sum of its proper divisors (722471).

7947049 is a wasteful number, since it uses less digits than its factorization.

7947049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722470.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 7947049 is about 2819.0510814811. The cubic root of 7947049 is about 199.5577645263.

The spelling of 7947049 in words is "seven million, nine hundred forty-seven thousand, forty-nine".