3761681 has 16 divisors (see below), whose sum is σ = 4790400. Its totient is φ = 2928240.

The previous prime is 3761669. The next prime is 3761701. The reversal of 3761681 is 1861673.

It is a de Polignac number, because none of the positive numbers 2^k-3761681 is a prime.

It is a super-2 number, since 2×3761681² = 28300487891522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3791681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3275 + ... + 4271.

It is an arithmetic number, because the mean of its divisors is an integer number (299400).

Almost surely, 2^3761681 is an apocalyptic number.

It is an amenable number.

3761681 is a deficient number, since it is larger than the sum of its proper divisors (1028719).

3761681 is an equidigital number, since it uses as much as digits as its factorization.

3761681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1015 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 3761681 is about 1939.5053493095. The cubic root of 3761681 is about 155.5227717949.

The spelling of 3761681 in words is "three million, seven hundred sixty-one thousand, six hundred eighty-one".