8641621203 has 32 divisors (see below), whose sum is σ = 12808751616. Its totient is φ = 5154513408.

The previous prime is 8641621201. The next prime is 8641621213. The reversal of 8641621203 is 3021261468.

It is not a de Polignac number, because 8641621203 - 2¹ = 8641621201 is a prime.

It is a super-2 number, since 2×8641621203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8641621201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168601 + ... + 213797.

It is an arithmetic number, because the mean of its divisors is an integer number (400273488).

Almost surely, 2^8641621203 is an apocalyptic number.

8641621203 is a deficient number, since it is larger than the sum of its proper divisors (4167130413).

8641621203 is a wasteful number, since it uses less digits than its factorization.

8641621203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45403.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 8641621203 is about 92960.3205835694. The cubic root of 8641621203 is about 2052.0994714176.

The spelling of 8641621203 in words is "eight billion, six hundred forty-one million, six hundred twenty-one thousand, two hundred three".