7212604328 has 16 divisors (see below), whose sum is σ = 13553232180. Its totient is φ = 3598409088.

The previous prime is 7212604309. The next prime is 7212604363. The reversal of 7212604328 is 8234062127.

It can be written as a sum of positive squares in 2 ways, for example, as 6541897924 + 670706404 = 80882^2 + 25898^2 .

It is a super-2 number, since 2×7212604328² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982751 + ... + 990062.

Almost surely, 2^7212604328 is an apocalyptic number.

It is an amenable number.

7212604328 is a deficient number, since it is larger than the sum of its proper divisors (6340627852).

7212604328 is a wasteful number, since it uses less digits than its factorization.

7212604328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973276 (or 1973272 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 7212604328 is about 84927.0529807787. The cubic root of 7212604328 is about 1932.1049035223.

The spelling of 7212604328 in words is "seven billion, two hundred twelve million, six hundred four thousand, three hundred twenty-eight".