3489869 has 2 divisors, whose sum is σ = 3489870. Its totient is φ = 3489868.

The previous prime is 3489847. The next prime is 3489881. The reversal of 3489869 is 9689843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3020644 + 469225 = 1738^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3489869 - 2⁸ = 3489613 is a prime.

It is a super-2 number, since 2×3489869² = 24358371274322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3483869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1744934 + 1744935.

It is an arithmetic number, because the mean of its divisors is an integer number (1744935).

Almost surely, 2^3489869 is an apocalyptic number.

It is an amenable number.

3489869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3489869 is an equidigital number, since it uses as much as digits as its factorization.

3489869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 3489869 is about 1868.1191075518. The cubic root of 3489869 is about 151.6828132926.

The spelling of 3489869 in words is "three million, four hundred eighty-nine thousand, eight hundred sixty-nine".