4691238221 has 4 divisors (see below), whose sum is σ = 4700640000. Its totient is φ = 4681836444.

The previous prime is 4691238199. The next prime is 4691238229. The reversal of 4691238221 is 1228321964.

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 4691238221 - 2¹⁰ = 4691237197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4691238229) 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 in 3 ways as a sum of consecutive naturals, for example, 4700141 + ... + 4701138.

It is an arithmetic number, because the mean of its divisors is an integer number (1175160000).

Almost surely, 2^4691238221 is an apocalyptic number.

It is an amenable number.

4691238221 is a deficient number, since it is larger than the sum of its proper divisors (9401779).

4691238221 is an equidigital number, since it uses as much as digits as its factorization.

4691238221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401778.

The product of its digits is 41472, while the sum is 38.

The square root of 4691238221 is about 68492.6143536659. The cubic root of 4691238221 is about 1674.0271438050.

The spelling of 4691238221 in words is "four billion, six hundred ninety-one million, two hundred thirty-eight thousand, two hundred twenty-one".