3922657 has 2 divisors, whose sum is σ = 3922658. Its totient is φ = 3922656.

The previous prime is 3922651. The next prime is 3922691. The reversal of 3922657 is 7562293.

It is a happy number.

It is an a-pointer prime, because the next prime (3922691) can be obtained adding 3922657 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3825936 + 96721 = 1956^2 + 311^2 .

It is an emirp because it is prime and its reverse (7562293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3922657 is a prime.

It is not a weakly prime, because it can be changed into another prime (3922651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961328 + 1961329.

It is an arithmetic number, because the mean of its divisors is an integer number (1961329).

Almost surely, 2^3922657 is an apocalyptic number.

It is an amenable number.

3922657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3922657 is an equidigital number, since it uses as much as digits as its factorization.

3922657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 3922657 is about 1980.5698674876. The cubic root of 3922657 is about 157.7103195094.

The spelling of 3922657 in words is "three million, nine hundred twenty-two thousand, six hundred fifty-seven".