4385406947 has 4 divisors (see below), whose sum is σ = 4386352080. Its totient is φ = 4384461816.

The previous prime is 4385406917. The next prime is 4385406973. The reversal of 4385406947 is 7496045834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4385406947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4385406895 and 4385406904.

It is not an unprimeable number, because it can be changed into a prime (4385406917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465572 + ... + 474897.

It is an arithmetic number, because the mean of its divisors is an integer number (1096588020).

Almost surely, 2^4385406947 is an apocalyptic number.

4385406947 is a deficient number, since it is larger than the sum of its proper divisors (945133).

4385406947 is an equidigital number, since it uses as much as digits as its factorization.

4385406947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945132.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 4385406947 is about 66222.4051737779. The cubic root of 4385406947 is about 1636.8289591794.

The spelling of 4385406947 in words is "four billion, three hundred eighty-five million, four hundred six thousand, nine hundred forty-seven".