7067974421 has 4 divisors (see below), whose sum is σ = 7068497772. Its totient is φ = 7067451072.

The previous prime is 7067974387. The next prime is 7067974423. The reversal of 7067974421 is 1244797607.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2966980900 + 4100993521 = 54470^2 + 64039^2 .

It is a cyclic number.

It is not a de Polignac number, because 7067974421 - 2⁶ = 7067974357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7067974423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240866 + ... + 268611.

It is an arithmetic number, because the mean of its divisors is an integer number (1767124443).

Almost surely, 2^7067974421 is an apocalyptic number.

It is an amenable number.

7067974421 is a deficient number, since it is larger than the sum of its proper divisors (523351).

7067974421 is a wasteful number, since it uses less digits than its factorization.

7067974421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523350.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 7067974421 is about 84071.2461011492. The cubic root of 7067974421 is about 1919.1031710197.

The spelling of 7067974421 in words is "seven billion, sixty-seven million, nine hundred seventy-four thousand, four hundred twenty-one".