3403366781 has 2 divisors, whose sum is σ = 3403366782. Its totient is φ = 3403366780.

The previous prime is 3403366763. The next prime is 3403366829. The reversal of 3403366781 is 1876633043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3402855556 + 511225 = 58334^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 3403366781 - 2¹⁴ = 3403350397 is a prime.

It is a super-2 number, since 2×3403366781² = 23165810892028603922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3403366721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701683390 + 1701683391.

It is an arithmetic number, because the mean of its divisors is an integer number (1701683391).

Almost surely, 2^3403366781 is an apocalyptic number.

It is an amenable number.

3403366781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3403366781 is an equidigital number, since it uses as much as digits as its factorization.

3403366781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 3403366781 is about 58338.3817139283. The cubic root of 3403366781 is about 1504.1907668193.

The spelling of 3403366781 in words is "three billion, four hundred three million, three hundred sixty-six thousand, seven hundred eighty-one".