4874639897 has 4 divisors (see below), whose sum is σ = 4941415860. Its totient is φ = 4807863936.

The previous prime is 4874639893. The next prime is 4874639909. The reversal of 4874639897 is 7989364784.

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 3535372681 + 1339267216 = 59459^2 + 36596^2 .

It is a cyclic number.

It is not a de Polignac number, because 4874639897 - 2² = 4874639893 is a prime.

It is a super-2 number, since 2×4874639897² = 47524228250848341218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4874639893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33387872 + ... + 33388017.

It is an arithmetic number, because the mean of its divisors is an integer number (1235353965).

Almost surely, 2^4874639897 is an apocalyptic number.

It is an amenable number.

4874639897 is a deficient number, since it is larger than the sum of its proper divisors (66775963).

4874639897 is an equidigital number, since it uses as much as digits as its factorization.

4874639897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66775962.

The product of its digits is 73156608, while the sum is 65.

The square root of 4874639897 is about 69818.6214200768. The cubic root of 4874639897 is about 1695.5639705504.

The spelling of 4874639897 in words is "four billion, eight hundred seventy-four million, six hundred thirty-nine thousand, eight hundred ninety-seven".