3893657 has 2 divisors, whose sum is σ = 3893658. Its totient is φ = 3893656.

The previous prime is 3893633. The next prime is 3893671. The reversal of 3893657 is 7563983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3463321 + 430336 = 1861^2 + 656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3893657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3893257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1946828 + 1946829.

It is an arithmetic number, because the mean of its divisors is an integer number (1946829).

Almost surely, 2^3893657 is an apocalyptic number.

It is an amenable number.

3893657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3893657 is an equidigital number, since it uses as much as digits as its factorization.

3893657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 3893657 is about 1973.2351608463. The cubic root of 3893657 is about 157.3207097304.

The spelling of 3893657 in words is "three million, eight hundred ninety-three thousand, six hundred fifty-seven".