3218890769 has 2 divisors, whose sum is σ = 3218890770. Its totient is φ = 3218890768.

The previous prime is 3218890747. The next prime is 3218890781. The reversal of 3218890769 is 9670988123.

3218890769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2055262225 + 1163628544 = 45335^2 + 34112^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218890769 - 2²⁰ = 3217842193 is a prime.

It is a super-2 number, since 2×3218890769² = 20722515565506822722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3218890769.

It is not a weakly prime, because it can be changed into another prime (3218890799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609445384 + 1609445385.

It is an arithmetic number, because the mean of its divisors is an integer number (1609445385).

Almost surely, 2^3218890769 is an apocalyptic number.

It is an amenable number.

3218890769 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218890769 is an equidigital number, since it uses as much as digits as its factorization.

3218890769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 3218890769 is about 56735.2691806428. The cubic root of 3218890769 is about 1476.5066698215.

The spelling of 3218890769 in words is "three billion, two hundred eighteen million, eight hundred ninety thousand, seven hundred sixty-nine".