4779767221 has 8 divisors (see below), whose sum is σ = 4837734720. Its totient is φ = 4722022272.

The previous prime is 4779767207. The next prime is 4779767227. The reversal of 4779767221 is 1227679774.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4779767221 - 2²¹ = 4777670069 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 (4779767227) 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 7 ways as a sum of consecutive naturals, for example, 12220 + ... + 98533.

It is an arithmetic number, because the mean of its divisors is an integer number (604716840).

Almost surely, 2^4779767221 is an apocalyptic number.

It is an amenable number.

4779767221 is a deficient number, since it is larger than the sum of its proper divisors (57967499).

4779767221 is a wasteful number, since it uses less digits than its factorization.

4779767221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111275.

The product of its digits is 2074464, while the sum is 52.

The square root of 4779767221 is about 69135.8606007042. The cubic root of 4779767221 is about 1684.4918555681.

The spelling of 4779767221 in words is "four billion, seven hundred seventy-nine million, seven hundred sixty-seven thousand, two hundred twenty-one".