4771447421 has 8 divisors (see below), whose sum is σ = 5147987544. Its totient is φ = 4396265280.

The previous prime is 4771447393. The next prime is 4771447489. The reversal of 4771447421 is 1247441774.

It can be written as a sum of positive squares in 4 ways, for example, as 81252196 + 4690195225 = 9014^2 + 68485^2 .

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 4771447421 - 2¹⁰ = 4771446397 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 (4771447921) 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, 332186 + ... + 346251.

It is an arithmetic number, because the mean of its divisors is an integer number (643498443).

Almost surely, 2^4771447421 is an apocalyptic number.

It is an amenable number.

4771447421 is a deficient number, since it is larger than the sum of its proper divisors (376540123).

4771447421 is a wasteful number, since it uses less digits than its factorization.

4771447421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678991.

The product of its digits is 175616, while the sum is 41.

The square root of 4771447421 is about 69075.6644629641. The cubic root of 4771447421 is about 1683.5139296574.

The spelling of 4771447421 in words is "four billion, seven hundred seventy-one million, four hundred forty-seven thousand, four hundred twenty-one".