3622820657 has 2 divisors, whose sum is σ = 3622820658. Its totient is φ = 3622820656.

The previous prime is 3622820629. The next prime is 3622820693. The reversal of 3622820657 is 7560282263.

3622820657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2250933136 + 1371887521 = 47444^2 + 37039^2 .

It is a cyclic number.

It is not a de Polignac number, because 3622820657 - 2²² = 3618626353 is a prime.

It is not a weakly prime, because it can be changed into another prime (3622823657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1811410328 + 1811410329.

It is an arithmetic number, because the mean of its divisors is an integer number (1811410329).

Almost surely, 2^3622820657 is an apocalyptic number.

It is an amenable number.

3622820657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3622820657 is an equidigital number, since it uses as much as digits as its factorization.

3622820657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 3622820657 is about 60189.8717144338. The cubic root of 3622820657 is about 1535.8505059732.

The spelling of 3622820657 in words is "three billion, six hundred twenty-two million, eight hundred twenty thousand, six hundred fifty-seven".