7880947 has 2 divisors, whose sum is σ = 7880948. Its totient is φ = 7880946.

The previous prime is 7880909. The next prime is 7880969. The reversal of 7880947 is 7490887.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7880947 is a prime.

It is not a weakly prime, because it can be changed into another prime (7880347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3940473 + 3940474.

It is an arithmetic number, because the mean of its divisors is an integer number (3940474).

Almost surely, 2^7880947 is an apocalyptic number.

7880947 is a deficient number, since it is larger than the sum of its proper divisors (1).

7880947 is an equidigital number, since it uses as much as digits as its factorization.

7880947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 7880947 is about 2807.3024418470. The cubic root of 7880947 is about 199.0029291758.

The spelling of 7880947 in words is "seven million, eight hundred eighty thousand, nine hundred forty-seven".