4927479821 has 8 divisors (see below), whose sum is σ = 5376205344. Its totient is φ = 4478883120.

The previous prime is 4927479803. The next prime is 4927479827. The reversal of 4927479821 is 1289747294.

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 4927479821 - 2⁶ = 4927479757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4927479827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59030 + ... + 115496.

It is an arithmetic number, because the mean of its divisors is an integer number (672025668).

Almost surely, 2^4927479821 is an apocalyptic number.

It is an amenable number.

4927479821 is a deficient number, since it is larger than the sum of its proper divisors (448725523).

4927479821 is a wasteful number, since it uses less digits than its factorization.

4927479821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64411.

The product of its digits is 2032128, while the sum is 53.

The square root of 4927479821 is about 70196.0100076920. The cubic root of 4927479821 is about 1701.6684681715.

The spelling of 4927479821 in words is "four billion, nine hundred twenty-seven million, four hundred seventy-nine thousand, eight hundred twenty-one".