3890222689 has 2 divisors, whose sum is σ = 3890222690. Its totient is φ = 3890222688.

The previous prime is 3890222681. The next prime is 3890222741. The reversal of 3890222689 is 9862220983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3633678400 + 256544289 = 60280^2 + 16017^2 .

It is a cyclic number.

It is not a de Polignac number, because 3890222689 - 2³ = 3890222681 is a prime.

It is not a weakly prime, because it can be changed into another prime (3890222681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945111344 + 1945111345.

It is an arithmetic number, because the mean of its divisors is an integer number (1945111345).

Almost surely, 2^3890222689 is an apocalyptic number.

It is an amenable number.

3890222689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3890222689 is an equidigital number, since it uses as much as digits as its factorization.

3890222689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 3890222689 is about 62371.6497216484. The cubic root of 3890222689 is about 1572.7444241484.

The spelling of 3890222689 in words is "three billion, eight hundred ninety million, two hundred twenty-two thousand, six hundred eighty-nine".