7964447 has 4 divisors (see below), whose sum is σ = 7978176. Its totient is φ = 7950720.

The previous prime is 7964443. The next prime is 7964459. The reversal of 7964447 is 7444697.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7964447 - 2² = 7964443 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 (7964441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5954 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (1994544).

Almost surely, 2^7964447 is an apocalyptic number.

7964447 is a deficient number, since it is larger than the sum of its proper divisors (13729).

7964447 is a wasteful number, since it uses less digits than its factorization.

7964447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728.

The product of its digits is 169344, while the sum is 41.

The square root of 7964447 is about 2822.1351845721. The cubic root of 7964447 is about 199.7032850188.

The spelling of 7964447 in words is "seven million, nine hundred sixty-four thousand, four hundred forty-seven".