3770681 has 4 divisors (see below), whose sum is σ = 3809652. Its totient is φ = 3731712.

The previous prime is 3770677. The next prime is 3770687. The reversal of 3770681 is 1860773.

It is a happy number.

3770681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1860773 = 151 ⋅12323.

It can be written as a sum of positive squares in 2 ways, for example, as 3031081 + 739600 = 1741^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 3770681 - 2² = 3770677 is a prime.

It is a super-2 number, since 2×3770681² = 28436070407522, 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 (3770687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19340 + ... + 19533.

It is an arithmetic number, because the mean of its divisors is an integer number (952413).

Almost surely, 2^3770681 is an apocalyptic number.

It is an amenable number.

3770681 is a deficient number, since it is larger than the sum of its proper divisors (38971).

3770681 is an equidigital number, since it uses as much as digits as its factorization.

3770681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38970.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 3770681 is about 1941.8241423981. The cubic root of 3770681 is about 155.6467048753.

The spelling of 3770681 in words is "three million, seven hundred seventy thousand, six hundred eighty-one".