4870798921 has 4 divisors (see below), whose sum is σ = 4875024532. Its totient is φ = 4866573312.

The previous prime is 4870798909. The next prime is 4870798937. The reversal of 4870798921 is 1298970784.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3439236025 + 1431562896 = 58645^2 + 37836^2 .

It is a cyclic number.

It is not a de Polignac number, because 4870798921 - 2¹¹ = 4870796873 is a prime.

It is a Duffinian number.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (4870798981) 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, 2111076 + ... + 2113381.

It is an arithmetic number, because the mean of its divisors is an integer number (1218756133).

Almost surely, 2^4870798921 is an apocalyptic number.

It is an amenable number.

4870798921 is a deficient number, since it is larger than the sum of its proper divisors (4225611).

4870798921 is a wasteful number, since it uses less digits than its factorization.

4870798921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225610.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The square root of 4870798921 is about 69791.1091830471. The cubic root of 4870798921 is about 1695.1185132485.

The spelling of 4870798921 in words is "four billion, eight hundred seventy million, seven hundred ninety-eight thousand, nine hundred twenty-one".