3278669 has 2 divisors, whose sum is σ = 3278670. Its totient is φ = 3278668.

The previous prime is 3278651. The next prime is 3278683. The reversal of 3278669 is 9668723.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 56644 = 1795^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 3278669 - 2⁸ = 3278413 is a prime.

It is a super-2 number, since 2×3278669² = 21499340823122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 3¹³ + 2⁹ + 7⁴ + 8³ + 6⁴ + 6⁸ + 9 .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3278609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639334 + 1639335.

It is an arithmetic number, because the mean of its divisors is an integer number (1639335).

Almost surely, 2^3278669 is an apocalyptic number.

It is an amenable number.

3278669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3278669 is an equidigital number, since it uses as much as digits as its factorization.

3278669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 3278669 is about 1810.7095294387. The cubic root of 3278669 is about 148.5590766623.

The spelling of 3278669 in words is "three million, two hundred seventy-eight thousand, six hundred sixty-nine".