3219920273 has 2 divisors, whose sum is σ = 3219920274. Its totient is φ = 3219920272.

The previous prime is 3219920261. The next prime is 3219920293. The reversal of 3219920273 is 3720299123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2279394049 + 940526224 = 47743^2 + 30668^2 .

It is a cyclic number.

It is not a de Polignac number, because 3219920273 - 2⁸ = 3219920017 is a prime.

It is not a weakly prime, because it can be changed into another prime (3219920233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609960136 + 1609960137.

It is an arithmetic number, because the mean of its divisors is an integer number (1609960137).

Almost surely, 2^3219920273 is an apocalyptic number.

It is an amenable number.

3219920273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3219920273 is an equidigital number, since it uses as much as digits as its factorization.

3219920273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 3219920273 is about 56744.3413302155. The cubic root of 3219920273 is about 1476.6640643615.

The spelling of 3219920273 in words is "three billion, two hundred nineteen million, nine hundred twenty thousand, two hundred seventy-three".