3781469 has 4 divisors (see below), whose sum is σ = 3791580. Its totient is φ = 3771360.

The previous prime is 3781457. The next prime is 3781489. The reversal of 3781469 is 9641873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403225 + 3378244 = 635^2 + 1838^2 .

It is a cyclic number.

It is not a de Polignac number, because 3781469 - 2⁸ = 3781213 is a prime.

It is a super-2 number, since 2×3781469² = 28599015595922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (947895).

Almost surely, 2^3781469 is an apocalyptic number.

It is an amenable number.

3781469 is a deficient number, since it is larger than the sum of its proper divisors (10111).

3781469 is an equidigital number, since it uses as much as digits as its factorization.

3781469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110.

The product of its digits is 36288, while the sum is 38.

The square root of 3781469 is about 1944.5999588604. The cubic root of 3781469 is about 155.7949997379.

The spelling of 3781469 in words is "three million, seven hundred eighty-one thousand, four hundred sixty-nine".