7074660321 has 45 divisors (see below), whose sum is σ = 10888827859. Its totient is φ = 4426257264.

The previous prime is 7074660311. The next prime is 7074660337. The reversal of 7074660321 is 1230664707.

The square root of 7074660321 is 84111.

It is a perfect power (a square), and thus also a powerful number.

7074660321 is a `hidden beast` number, since 7 + 0 + 7 + 46 + 603 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5100102225 + 1974558096 = 71415^2 + 44436^2 .

It is not a de Polignac number, because 7074660321 - 2⁷ = 7074660193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7074660311) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 133484131 + ... + 133484183.

Almost surely, 2^7074660321 is an apocalyptic number.

7074660321 is the 84111-st square number.

7074660321 is the 42056-th centered octagonal number.

It is an amenable number.

7074660321 is a deficient number, since it is larger than the sum of its proper divisors (3814167538).

7074660321 is an frugal number, since it uses more digits than its factorization.

7074660321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The cubic root of 7074660321 is about 1919.7081009697.

Multiplying 7074660321 by its sum of digits (36), we get a square (254687771556 = 504666²).

The spelling of 7074660321 in words is "seven billion, seventy-four million, six hundred sixty thousand, three hundred twenty-one".