3200869981 has 2 divisors, whose sum is σ = 3200869982. Its totient is φ = 3200869980.

The previous prime is 3200869967. The next prime is 3200870009. The reversal of 3200869981 is 1899680023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1914500025 + 1286369956 = 43755^2 + 35866^2 .

It is a cyclic number.

It is not a de Polignac number, because 3200869981 - 2²⁵ = 3167315549 is a prime.

It is a super-2 number, since 2×3200869981² = 20491137270533880722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3200869951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600434990 + 1600434991.

It is an arithmetic number, because the mean of its divisors is an integer number (1600434991).

Almost surely, 2^3200869981 is an apocalyptic number.

It is an amenable number.

3200869981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3200869981 is an equidigital number, since it uses as much as digits as its factorization.

3200869981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 3200869981 is about 56576.2315906600. The cubic root of 3200869981 is about 1473.7461305812.

It can be divided in two parts, 3200 and 869981, that added together give a triangular number (873181 = T₁₃₂₁).

The spelling of 3200869981 in words is "three billion, two hundred million, eight hundred sixty-nine thousand, nine hundred eighty-one".