3785431 has 8 divisors (see below), whose sum is σ = 4103120. Its totient is φ = 3492216.

The previous prime is 3785417. The next prime is 3785449. The reversal of 3785431 is 1345873.

It is not a de Polignac number, because 3785431 - 2⁷ = 3785303 is a prime.

It is a super-2 number, since 2×3785431² = 28658975711522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3785393 and 3785402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3785401) 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 in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 3058.

It is an arithmetic number, because the mean of its divisors is an integer number (512890).

Almost surely, 2^3785431 is an apocalyptic number.

3785431 is a deficient number, since it is larger than the sum of its proper divisors (317689).

3785431 is an equidigital number, since it uses as much as digits as its factorization.

3785431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762 (or 1736 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 3785431 is about 1945.6184106859. The cubic root of 3785431 is about 155.8493916808.

The spelling of 3785431 in words is "three million, seven hundred eighty-five thousand, four hundred thirty-one".