7211089284 has 24 divisors (see below), whose sum is σ = 19229571648. Its totient is φ = 2060311200.

The previous prime is 7211089271. The next prime is 7211089289. The reversal of 7211089284 is 4829801127.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (7211089289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42923067 + ... + 42923234.

It is an arithmetic number, because the mean of its divisors is an integer number (801232152).

Almost surely, 2^7211089284 is an apocalyptic number.

It is an amenable number.

7211089284 is an abundant number, since it is smaller than the sum of its proper divisors (12018482364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7211089284 is a wasteful number, since it uses less digits than its factorization.

7211089284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85846315 (or 85846313 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 7211089284 is about 84918.1328339242. The cubic root of 7211089284 is about 1931.9696112482.

The spelling of 7211089284 in words is "seven billion, two hundred eleven million, eighty-nine thousand, two hundred eighty-four".