7922447 has 8 divisors (see below), whose sum is σ = 8611680. Its totient is φ = 7244640.

The previous prime is 7922443. The next prime is 7922483. The reversal of 7922447 is 7442297.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7922447 - 2² = 7922443 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7922441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 4212.

It is an arithmetic number, because the mean of its divisors is an integer number (1076460).

Almost surely, 2^7922447 is an apocalyptic number.

7922447 is a deficient number, since it is larger than the sum of its proper divisors (689233).

7922447 is a wasteful number, since it uses less digits than its factorization.

7922447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713.

The product of its digits is 28224, while the sum is 35.

The square root of 7922447 is about 2814.6841741126. The cubic root of 7922447 is about 199.3516253228.

The spelling of 7922447 in words is "seven million, nine hundred twenty-two thousand, four hundred forty-seven".