3913669 has 2 divisors, whose sum is σ = 3913670. Its totient is φ = 3913668.

The previous prime is 3913667. The next prime is 3913673. The reversal of 3913669 is 9663193.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3020644 + 893025 = 1738^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 3913669 - 2¹ = 3913667 is a prime.

It is a super-2 number, since 2×3913669² = 30633610083122, which contains 22 as substring.

Together with 3913667, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3913667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956834 + 1956835.

It is an arithmetic number, because the mean of its divisors is an integer number (1956835).

Almost surely, 2^3913669 is an apocalyptic number.

It is an amenable number.

3913669 is a deficient number, since it is larger than the sum of its proper divisors (1).

3913669 is an equidigital number, since it uses as much as digits as its factorization.

3913669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 37.

The square root of 3913669 is about 1978.2995223171. The cubic root of 3913669 is about 157.5897732935.

The spelling of 3913669 in words is "three million, nine hundred thirteen thousand, six hundred sixty-nine".