3678869 has 2 divisors, whose sum is σ = 3678870. Its totient is φ = 3678868.

The previous prime is 3678847. The next prime is 3678877. The reversal of 3678869 is 9688763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 1532644 = 1465^2 + 1238^2 .

It is a cyclic number.

It is not a de Polignac number, because 3678869 - 2¹² = 3674773 is a prime.

It is a super-2 number, since 2×3678869² = 27068154238322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839434 + 1839435.

It is an arithmetic number, because the mean of its divisors is an integer number (1839435).

Almost surely, 2^3678869 is an apocalyptic number.

It is an amenable number.

3678869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678869 is an equidigital number, since it uses as much as digits as its factorization.

3678869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 3678869 is about 1918.0377994190. The cubic root of 3678869 is about 154.3730344999.

The spelling of 3678869 in words is "three million, six hundred seventy-eight thousand, eight hundred sixty-nine".