7994443 has 2 divisors, whose sum is σ = 7994444. Its totient is φ = 7994442.

The previous prime is 7994407. The next prime is 7994447. The reversal of 7994443 is 3444997.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7994443 - 2²¹ = 5897291 is a prime.

It is a super-2 number, since 2×7994443² = 127822237760498, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7994396 and 7994405.

It is not a weakly prime, because it can be changed into another prime (7994447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3997221 + 3997222.

It is an arithmetic number, because the mean of its divisors is an integer number (3997222).

Almost surely, 2^7994443 is an apocalyptic number.

7994443 is a deficient number, since it is larger than the sum of its proper divisors (1).

7994443 is an equidigital number, since it uses as much as digits as its factorization.

7994443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 7994443 is about 2827.4446060003. Note that the first 3 decimals coincide. The cubic root of 7994443 is about 199.9536809402.

The spelling of 7994443 in words is "seven million, nine hundred ninety-four thousand, four hundred forty-three".