4394508847 has 2 divisors, whose sum is σ = 4394508848. Its totient is φ = 4394508846.

The previous prime is 4394508821. The next prime is 4394508901. The reversal of 4394508847 is 7488054934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4394508847 - 2³¹ = 2247025199 is a prime.

It is a super-2 number, since 2×4394508847² = 38623416012722538818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4394508794 and 4394508803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4394508247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197254423 + 2197254424.

It is an arithmetic number, because the mean of its divisors is an integer number (2197254424).

Almost surely, 2^4394508847 is an apocalyptic number.

4394508847 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394508847 is an equidigital number, since it uses as much as digits as its factorization.

4394508847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The square root of 4394508847 is about 66291.0917620158. The cubic root of 4394508847 is about 1637.9605879699.

The spelling of 4394508847 in words is "four billion, three hundred ninety-four million, five hundred eight thousand, eight hundred forty-seven".