3692681 has 2 divisors, whose sum is σ = 3692682. Its totient is φ = 3692680.

The previous prime is 3692671. The next prime is 3692683. The reversal of 3692681 is 1862963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3644281 + 48400 = 1909^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3692681 - 2⁶ = 3692617 is a prime.

It is a super-2 number, since 2×3692681² = 27271785935522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3692683, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3692683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1846340 + 1846341.

It is an arithmetic number, because the mean of its divisors is an integer number (1846341).

Almost surely, 2^3692681 is an apocalyptic number.

It is an amenable number.

3692681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3692681 is an equidigital number, since it uses as much as digits as its factorization.

3692681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 3692681 is about 1921.6349809472. The cubic root of 3692681 is about 154.5659866922.

The spelling of 3692681 in words is "three million, six hundred ninety-two thousand, six hundred eighty-one".