4247438669 has 4 divisors (see below), whose sum is σ = 4310833344. Its totient is φ = 4184043996.

The previous prime is 4247438659. The next prime is 4247438677. The reversal of 4247438669 is 9668347424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4247438669 - 2⁴ = 4247438653 is a prime.

It is a super-2 number, since 2×4247438669² = 36081470493832983122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4247438669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247438659) 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, 31697237 + ... + 31697370.

It is an arithmetic number, because the mean of its divisors is an integer number (1077708336).

Almost surely, 2^4247438669 is an apocalyptic number.

It is an amenable number.

4247438669 is a deficient number, since it is larger than the sum of its proper divisors (63394675).

4247438669 is an equidigital number, since it uses as much as digits as its factorization.

4247438669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63394674.

The product of its digits is 6967296, while the sum is 53.

The square root of 4247438669 is about 65172.3765793453. The cubic root of 4247438669 is about 1619.4804345364.

The spelling of 4247438669 in words is "four billion, two hundred forty-seven million, four hundred thirty-eight thousand, six hundred sixty-nine".