7947056401 has 8 divisors (see below), whose sum is σ = 8011074600. Its totient is φ = 7883180928.

The previous prime is 7947056333. The next prime is 7947056423. The reversal of 7947056401 is 1046507497.

It can be written as a sum of positive squares in 4 ways, for example, as 101525776 + 7845530625 = 10076^2 + 88575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7947056401 - 2¹³ = 7947048209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7947056431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77565 + ... + 148021.

It is an arithmetic number, because the mean of its divisors is an integer number (1001384325).

Almost surely, 2^7947056401 is an apocalyptic number.

It is an amenable number.

7947056401 is a deficient number, since it is larger than the sum of its proper divisors (64018199).

7947056401 is a wasteful number, since it uses less digits than its factorization.

7947056401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71363.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 7947056401 is about 89146.2640888557. The cubic root of 7947056401 is about 1995.5782647497.

The spelling of 7947056401 in words is "seven billion, nine hundred forty-seven million, fifty-six thousand, four hundred one".