3688757 has 2 divisors, whose sum is σ = 3688758. Its totient is φ = 3688756.

The previous prime is 3688709. The next prime is 3688759. The reversal of 3688757 is 7578863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3290596 + 398161 = 1814^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688757 - 2⁶ = 3688693 is a prime.

Together with 3688759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3688759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844378 + 1844379.

It is an arithmetic number, because the mean of its divisors is an integer number (1844379).

Almost surely, 2^3688757 is an apocalyptic number.

It is an amenable number.

3688757 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688757 is an equidigital number, since it uses as much as digits as its factorization.

3688757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The square root of 3688757 is about 1920.6137040019. The cubic root of 3688757 is about 154.5112178224.

The spelling of 3688757 in words is "three million, six hundred eighty-eight thousand, seven hundred fifty-seven".