413770661 has 2 divisors, whose sum is σ = 413770662. Its totient is φ = 413770660.

The previous prime is 413770607. The next prime is 413770691. The reversal of 413770661 is 166077314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329241025 + 84529636 = 18145^2 + 9194^2 .

It is a cyclic number.

It is not a de Polignac number, because 413770661 - 2¹⁰ = 413769637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (413770601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206885330 + 206885331.

It is an arithmetic number, because the mean of its divisors is an integer number (206885331).

Almost surely, 2^413770661 is an apocalyptic number.

It is an amenable number.

413770661 is a deficient number, since it is larger than the sum of its proper divisors (1).

413770661 is an equidigital number, since it uses as much as digits as its factorization.

413770661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 413770661 is about 20341.3534702094. The cubic root of 413770661 is about 745.1663433495.

The spelling of 413770661 in words is "four hundred thirteen million, seven hundred seventy thousand, six hundred sixty-one".