3400666697 has 2 divisors, whose sum is σ = 3400666698. Its totient is φ = 3400666696.

The previous prime is 3400666669. The next prime is 3400666699. The reversal of 3400666697 is 7966660043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3357159481 + 43507216 = 57941^2 + 6596^2 .

It is a cyclic number.

It is not a de Polignac number, because 3400666697 - 2⁸ = 3400666441 is a prime.

Together with 3400666699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3400666699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1700333348 + 1700333349.

It is an arithmetic number, because the mean of its divisors is an integer number (1700333349).

Almost surely, 2^3400666697 is an apocalyptic number.

It is an amenable number.

3400666697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400666697 is an equidigital number, since it uses as much as digits as its factorization.

3400666697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 47.

The square root of 3400666697 is about 58315.2355478395. The cubic root of 3400666697 is about 1503.7928749458.

The spelling of 3400666697 in words is "three billion, four hundred million, six hundred sixty-six thousand, six hundred ninety-seven".