7947361 has 2 divisors, whose sum is σ = 7947362. Its totient is φ = 7947360.

The previous prime is 7947349. The next prime is 7947409. The reversal of 7947361 is 1637497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7054336 + 893025 = 2656^2 + 945^2 .

It is an emirp because it is prime and its reverse (1637497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7947361 - 2¹¹ = 7945313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7947361.

It is not a weakly prime, because it can be changed into another prime (7947061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3973680 + 3973681.

It is an arithmetic number, because the mean of its divisors is an integer number (3973681).

Almost surely, 2^7947361 is an apocalyptic number.

It is an amenable number.

7947361 is a deficient number, since it is larger than the sum of its proper divisors (1).

7947361 is an equidigital number, since it uses as much as digits as its factorization.

7947361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 7947361 is about 2819.1064187079. The cubic root of 7947361 is about 199.5603760285.

The spelling of 7947361 in words is "seven million, nine hundred forty-seven thousand, three hundred sixty-one".