4898471821 has 4 divisors (see below), whose sum is σ = 4946971644. Its totient is φ = 4849972000.

The previous prime is 4898471803. The next prime is 4898471827. The reversal of 4898471821 is 1281748984.

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 3867098596 + 1031373225 = 62186^2 + 32115^2 .

It is a cyclic number.

It is not a de Polignac number, because 4898471821 - 2¹⁷ = 4898340749 is a prime.

It is a super-2 number, since 2×4898471821² = 47990052362262112082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4898471827) 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, 24249760 + ... + 24249961.

It is an arithmetic number, because the mean of its divisors is an integer number (1236742911).

Almost surely, 2^4898471821 is an apocalyptic number.

It is an amenable number.

4898471821 is a deficient number, since it is larger than the sum of its proper divisors (48499823).

4898471821 is a wasteful number, since it uses less digits than its factorization.

4898471821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48499822.

The product of its digits is 1032192, while the sum is 52.

The square root of 4898471821 is about 69989.0835845134. The cubic root of 4898471821 is about 1698.3226617133.

The spelling of 4898471821 in words is "four billion, eight hundred ninety-eight million, four hundred seventy-one thousand, eight hundred twenty-one".