7213001772 has 12 divisors (see below), whose sum is σ = 16830337496. Its totient is φ = 2404333920.

The previous prime is 7213001767. The next prime is 7213001773. The reversal of 7213001772 is 2771003127.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (7213001773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300541729 + ... + 300541752.

Almost surely, 2^7213001772 is an apocalyptic number.

It is an amenable number.

7213001772 is an abundant number, since it is smaller than the sum of its proper divisors (9617335724).

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

7213001772 is a wasteful number, since it uses less digits than its factorization.

7213001772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601083488 (or 601083486 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 7213001772 is about 84929.3928625420. The cubic root of 7213001772 is about 1932.1403918315.

Adding to 7213001772 its reverse (2771003127), we get a palindrome (9984004899).

The spelling of 7213001772 in words is "seven billion, two hundred thirteen million, one thousand, seven hundred seventy-two".