4978435447 has 2 divisors, whose sum is σ = 4978435448. Its totient is φ = 4978435446.

The previous prime is 4978435411. The next prime is 4978435513. The reversal of 4978435447 is 7445348794.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4978435447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978435747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489217723 + 2489217724.

It is an arithmetic number, because the mean of its divisors is an integer number (2489217724).

Almost surely, 2^4978435447 is an apocalyptic number.

4978435447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978435447 is an equidigital number, since it uses as much as digits as its factorization.

4978435447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 55.

The square root of 4978435447 is about 70558.0289336373. The cubic root of 4978435447 is about 1707.5140795442.

The spelling of 4978435447 in words is "four billion, nine hundred seventy-eight million, four hundred thirty-five thousand, four hundred forty-seven".