3180869 has 2 divisors, whose sum is σ = 3180870. Its totient is φ = 3180868.

The previous prime is 3180841. The next prime is 3180893. The reversal of 3180869 is 9680813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2067844 + 1113025 = 1438^2 + 1055^2 .

It is an emirp because it is prime and its reverse (9680813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3180869 - 2⁸ = 3180613 is a prime.

It is a super-2 number, since 2×3180869² = 20235855190322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3180899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1590434 + 1590435.

It is an arithmetic number, because the mean of its divisors is an integer number (1590435).

Almost surely, 2^3180869 is an apocalyptic number.

It is an amenable number.

3180869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3180869 is an equidigital number, since it uses as much as digits as its factorization.

3180869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3180869 is about 1783.4990888700. The cubic root of 3180869 is about 147.0670094173.

The spelling of 3180869 in words is "three million, one hundred eighty thousand, eight hundred sixty-nine".