3706681 has 8 divisors (see below), whose sum is σ = 4060224. Its totient is φ = 3355920.

The previous prime is 3706679. The next prime is 3706723. The reversal of 3706681 is 1866073.

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 3706681 - 2¹ = 3706679 is a prime.

It is a super-2 number, since 2×3706681² = 27478968071522, which contains 22 as substring.

It is a Duffinian number.

3706681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3706621) 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, 2956 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (507528).

Almost surely, 2^3706681 is an apocalyptic number.

It is an amenable number.

3706681 is a deficient number, since it is larger than the sum of its proper divisors (353543).

3706681 is a wasteful number, since it uses less digits than its factorization.

3706681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 3706681 is about 1925.2742661761. The cubic root of 3706681 is about 154.7610748388.

The spelling of 3706681 in words is "three million, seven hundred six thousand, six hundred eighty-one".