3797781 has 8 divisors (see below), whose sum is σ = 5453280. Its totient is φ = 2337072.

The previous prime is 3797743. The next prime is 3797797. The reversal of 3797781 is 1877973.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3797781 - 2¹⁹ = 3273493 is a prime.

It is a super-2 number, since 2×3797781² = 28846281047922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3797711) 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, 48651 + ... + 48728.

It is an arithmetic number, because the mean of its divisors is an integer number (681660).

Almost surely, 2^3797781 is an apocalyptic number.

It is an amenable number.

3797781 is a deficient number, since it is larger than the sum of its proper divisors (1655499).

3797781 is a wasteful number, since it uses less digits than its factorization.

3797781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97395.

The product of its digits is 74088, while the sum is 42.

The square root of 3797781 is about 1948.7896243566. The cubic root of 3797781 is about 156.0186943409.

The spelling of 3797781 in words is "three million, seven hundred ninety-seven thousand, seven hundred eighty-one".