3078689 has 2 divisors, whose sum is σ = 3078690. Its totient is φ = 3078688.

The previous prime is 3078667. The next prime is 3078721. The reversal of 3078689 is 9868703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1868689 + 1210000 = 1367^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 3078689 - 2¹² = 3074593 is a prime.

It is not a weakly prime, because it can be changed into another prime (3077689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539344 + 1539345.

It is an arithmetic number, because the mean of its divisors is an integer number (1539345).

Almost surely, 2^3078689 is an apocalyptic number.

It is an amenable number.

3078689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3078689 is an equidigital number, since it uses as much as digits as its factorization.

3078689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 3078689 is about 1754.6193319350. The cubic root of 3078689 is about 145.4750806590.

The spelling of 3078689 in words is "three million, seventy-eight thousand, six hundred eighty-nine".