4247001663 has 4 divisors (see below), whose sum is σ = 5662668888. Its totient is φ = 2831334440.

The previous prime is 4247001631. The next prime is 4247001667. The reversal of 4247001663 is 3661007424.

It is a happy number.

4247001663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4247001663 - 2⁵ = 4247001631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247001667) 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, 707833608 + ... + 707833613.

It is an arithmetic number, because the mean of its divisors is an integer number (1415667222).

Almost surely, 2^4247001663 is an apocalyptic number.

4247001663 is a deficient number, since it is larger than the sum of its proper divisors (1415667225).

4247001663 is a wasteful number, since it uses less digits than its factorization.

4247001663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415667224.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 4247001663 is about 65169.0237996550. The cubic root of 4247001663 is about 1619.4248914985.

The spelling of 4247001663 in words is "four billion, two hundred forty-seven million, one thousand, six hundred sixty-three".