3855469 has 2 divisors, whose sum is σ = 3855470. Its totient is φ = 3855468.

The previous prime is 3855431. The next prime is 3855479. The reversal of 3855469 is 9645583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2975625 + 879844 = 1725^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855469 - 2⁹ = 3854957 is a prime.

It is a super-2 number, since 2×3855469² = 29729282419922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3855409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927734 + 1927735.

It is an arithmetic number, because the mean of its divisors is an integer number (1927735).

Almost surely, 2^3855469 is an apocalyptic number.

It is an amenable number.

3855469 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855469 is an equidigital number, since it uses as much as digits as its factorization.

3855469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 40.

The square root of 3855469 is about 1963.5348227113. The cubic root of 3855469 is about 156.8046985308.

The spelling of 3855469 in words is "three million, eight hundred fifty-five thousand, four hundred sixty-nine".