3796781 has 4 divisors (see below), whose sum is σ = 3816252. Its totient is φ = 3777312.

The previous prime is 3796777. The next prime is 3796783. The reversal of 3796781 is 1876973.

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 3258025 + 538756 = 1805^2 + 734^2 .

It is a cyclic number.

It is not a de Polignac number, because 3796781 - 2² = 3796777 is a prime.

It is a super-2 number, since 2×3796781² = 28831091923922, 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 (3796783) 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, 9440 + ... + 9833.

It is an arithmetic number, because the mean of its divisors is an integer number (954063).

Almost surely, 2^3796781 is an apocalyptic number.

It is an amenable number.

3796781 is a deficient number, since it is larger than the sum of its proper divisors (19471).

3796781 is a wasteful number, since it uses less digits than its factorization.

3796781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19470.

The product of its digits is 63504, while the sum is 41.

The square root of 3796781 is about 1948.5330379545. The cubic root of 3796781 is about 156.0049992919.

The spelling of 3796781 in words is "three million, seven hundred ninety-six thousand, seven hundred eighty-one".