4621974209 has 16 divisors (see below), whose sum is σ = 4874784720. Its totient is φ = 4375848960.

The previous prime is 4621974191. The next prime is 4621974211. The reversal of 4621974209 is 9024791264.

It can be written as a sum of positive squares in 8 ways, for example, as 11971600 + 4610002609 = 3460^2 + 67897^2 .

It is a cyclic number.

It is not a de Polignac number, because 4621974209 - 2²⁸ = 4353538753 is a prime.

It is a super-2 number, since 2×4621974209² = 42725291177322351362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4621974209.

It is not an unprimeable number, because it can be changed into a prime (4621974299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592277 + ... + 600029.

It is an arithmetic number, because the mean of its divisors is an integer number (304674045).

Almost surely, 2^4621974209 is an apocalyptic number.

It is an amenable number.

4621974209 is a deficient number, since it is larger than the sum of its proper divisors (252810511).

4621974209 is a wasteful number, since it uses less digits than its factorization.

4621974209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 4621974209 is about 67985.1028461383. The cubic root of 4621974209 is about 1665.7475093742.

The spelling of 4621974209 in words is "four billion, six hundred twenty-one million, nine hundred seventy-four thousand, two hundred nine".