3405043997 has 2 divisors, whose sum is σ = 3405043998. Its totient is φ = 3405043996.

The previous prime is 3405043949. The next prime is 3405044021. The reversal of 3405043997 is 7993405043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3279738361 + 125305636 = 57269^2 + 11194^2 .

It is a cyclic number.

It is not a de Polignac number, because 3405043997 - 2²⁰ = 3403995421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3405043907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702521998 + 1702521999.

It is an arithmetic number, because the mean of its divisors is an integer number (1702521999).

Almost surely, 2^3405043997 is an apocalyptic number.

It is an amenable number.

3405043997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405043997 is an equidigital number, since it uses as much as digits as its factorization.

3405043997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 3405043997 is about 58352.7548364257. The cubic root of 3405043997 is about 1504.4378200724.

The spelling of 3405043997 in words is "three billion, four hundred five million, forty-three thousand, nine hundred ninety-seven".