7980677 has 2 divisors, whose sum is σ = 7980678. Its totient is φ = 7980676.

The previous prime is 7980673. The next prime is 7980683. The reversal of 7980677 is 7760897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7230721 + 749956 = 2689^2 + 866^2 .

It is an emirp because it is prime and its reverse (7760897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7980677 - 2² = 7980673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7980673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990338 + 3990339.

It is an arithmetic number, because the mean of its divisors is an integer number (3990339).

Almost surely, 2^7980677 is an apocalyptic number.

It is an amenable number.

7980677 is a deficient number, since it is larger than the sum of its proper divisors (1).

7980677 is an equidigital number, since it uses as much as digits as its factorization.

7980677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 7980677 is about 2825.0092035248. The cubic root of 7980677 is about 199.8388451805.

The spelling of 7980677 in words is "seven million, nine hundred eighty thousand, six hundred seventy-seven".