4394649659 has 2 divisors, whose sum is σ = 4394649660. Its totient is φ = 4394649658.

The previous prime is 4394649613. The next prime is 4394649673. The reversal of 4394649659 is 9569464934.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4394649659 - 2¹⁶ = 4394584123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4394649598 and 4394649607.

It is not a weakly prime, because it can be changed into another prime (4394648659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197324829 + 2197324830.

It is an arithmetic number, because the mean of its divisors is an integer number (2197324830).

Almost surely, 2^4394649659 is an apocalyptic number.

4394649659 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394649659 is an equidigital number, since it uses as much as digits as its factorization.

4394649659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 59.

The square root of 4394649659 is about 66292.1538268293. The cubic root of 4394649659 is about 1637.9780826851.

The spelling of 4394649659 in words is "four billion, three hundred ninety-four million, six hundred forty-nine thousand, six hundred fifty-nine".