3280687 has 2 divisors, whose sum is σ = 3280688. Its totient is φ = 3280686.

The previous prime is 3280681. The next prime is 3280691. The reversal of 3280687 is 7860823.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7860823) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3280687 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3280681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640343 + 1640344.

It is an arithmetic number, because the mean of its divisors is an integer number (1640344).

Almost surely, 2^3280687 is an apocalyptic number.

3280687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3280687 is an equidigital number, since it uses as much as digits as its factorization.

3280687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3280687 is about 1811.2666838431. The cubic root of 3280687 is about 148.5895494680.

The spelling of 3280687 in words is "three million, two hundred eighty thousand, six hundred eighty-seven".