7944395 has 4 divisors (see below), whose sum is σ = 9533280. Its totient is φ = 6355512.

The previous prime is 7944373. The next prime is 7944437. The reversal of 7944395 is 5934497.

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 7944395 - 2¹⁶ = 7878859 is a prime.

It is a super-2 number, since 2×7944395² = 126226823832050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 794435 + ... + 794444.

It is an arithmetic number, because the mean of its divisors is an integer number (2383320).

Almost surely, 2^7944395 is an apocalyptic number.

7944395 is a deficient number, since it is larger than the sum of its proper divisors (1588885).

7944395 is a wasteful number, since it uses less digits than its factorization.

7944395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588884.

The product of its digits is 136080, while the sum is 41.

The square root of 7944395 is about 2818.5803164004. The cubic root of 7944395 is about 199.5355472531.

The spelling of 7944395 in words is "seven million, nine hundred forty-four thousand, three hundred ninety-five".