3408955861 has 2 divisors, whose sum is σ = 3408955862. Its totient is φ = 3408955860.

The previous prime is 3408955859. The next prime is 3408955897. The reversal of 3408955861 is 1685598043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1846334961 + 1562620900 = 42969^2 + 39530^2 .

It is an emirp because it is prime and its reverse (1685598043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3408955861 - 2¹ = 3408955859 is a prime.

Together with 3408955859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3408955801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704477930 + 1704477931.

It is an arithmetic number, because the mean of its divisors is an integer number (1704477931).

Almost surely, 2^3408955861 is an apocalyptic number.

It is an amenable number.

3408955861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3408955861 is an equidigital number, since it uses as much as digits as its factorization.

3408955861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 3408955861 is about 58386.2643179027. The cubic root of 3408955861 is about 1505.0137209891.

The spelling of 3408955861 in words is "three billion, four hundred eight million, nine hundred fifty-five thousand, eight hundred sixty-one".