4974828721 has 4 divisors (see below), whose sum is σ = 4979315700. Its totient is φ = 4970341744.

The previous prime is 4974828701. The next prime is 4974828839. The reversal of 4974828721 is 1278284794.

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 52403121 + 4922425600 = 7239^2 + 70160^2 .

It is a cyclic number.

It is not a de Polignac number, because 4974828721 - 2⁵ = 4974828689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4974828701) 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, 2241826 + ... + 2244043.

It is an arithmetic number, because the mean of its divisors is an integer number (1244828925).

Almost surely, 2^4974828721 is an apocalyptic number.

It is an amenable number.

4974828721 is a deficient number, since it is larger than the sum of its proper divisors (4486979).

4974828721 is a wasteful number, since it uses less digits than its factorization.

4974828721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486978.

The product of its digits is 1806336, while the sum is 52.

The square root of 4974828721 is about 70532.4657232398. The cubic root of 4974828721 is about 1707.1016324803.

The spelling of 4974828721 in words is "four billion, nine hundred seventy-four million, eight hundred twenty-eight thousand, seven hundred twenty-one".