3704781 has 8 divisors (see below), whose sum is σ = 4989024. Its totient is φ = 2445200.

The previous prime is 3704761. The next prime is 3704819. The reversal of 3704781 is 1874073.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3704781 - 2⁵ = 3704749 is a prime.

It is a super-2 number, since 2×3704781² = 27450804515922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3704731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5811 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (623628).

Almost surely, 2^3704781 is an apocalyptic number.

It is an amenable number.

3704781 is a deficient number, since it is larger than the sum of its proper divisors (1284243).

3704781 is a wasteful number, since it uses less digits than its factorization.

3704781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12331.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 3704781 is about 1924.7807667368. The cubic root of 3704781 is about 154.7346274322.

It can be divided in two parts, 37047 and 81, that added together give a triangular number (37128 = T₂₇₂).

The spelling of 3704781 in words is "three million, seven hundred four thousand, seven hundred eighty-one".