3433720861 has 2 divisors, whose sum is σ = 3433720862. Its totient is φ = 3433720860.

The previous prime is 3433720847. The next prime is 3433720919. The reversal of 3433720861 is 1680273343.

3433720861 is digitally balanced in base 2, 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., 3029952025 + 403768836 = 55045^2 + 20094^2 .

It is a cyclic number.

It is not a de Polignac number, because 3433720861 - 2⁷ = 3433720733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3433720861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3433721861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1716860430 + 1716860431.

It is an arithmetic number, because the mean of its divisors is an integer number (1716860431).

Almost surely, 2^3433720861 is an apocalyptic number.

It is an amenable number.

3433720861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3433720861 is an equidigital number, since it uses as much as digits as its factorization.

3433720861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 3433720861 is about 58597.9595293215. The cubic root of 3433720861 is about 1508.6494160189.

The spelling of 3433720861 in words is "three billion, four hundred thirty-three million, seven hundred twenty thousand, eight hundred sixty-one".