3405543961 has 2 divisors, whose sum is σ = 3405543962. Its totient is φ = 3405543960.

The previous prime is 3405543937. The next prime is 3405544003. The reversal of 3405543961 is 1693455043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3310851600 + 94692361 = 57540^2 + 9731^2 .

It is a cyclic number.

It is not a de Polignac number, because 3405543961 - 2¹¹ = 3405541913 is a prime.

It is not a weakly prime, because it can be changed into another prime (3405541961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702771980 + 1702771981.

It is an arithmetic number, because the mean of its divisors is an integer number (1702771981).

Almost surely, 2^3405543961 is an apocalyptic number.

It is an amenable number.

3405543961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405543961 is an equidigital number, since it uses as much as digits as its factorization.

3405543961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 3405543961 is about 58357.0386585886. The cubic root of 3405543961 is about 1504.5114488753.

The spelling of 3405543961 in words is "three billion, four hundred five million, five hundred forty-three thousand, nine hundred sixty-one".