1734616661 has 2 divisors, whose sum is σ = 1734616662. Its totient is φ = 1734616660.

The previous prime is 1734616657. The next prime is 1734616693. The reversal of 1734616661 is 1666164371.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1310874436 + 423742225 = 36206^2 + 20585^2 .

It is a cyclic number.

It is not a de Polignac number, because 1734616661 - 2² = 1734616657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1734616601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867308330 + 867308331.

It is an arithmetic number, because the mean of its divisors is an integer number (867308331).

Almost surely, 2^1734616661 is an apocalyptic number.

It is an amenable number.

1734616661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1734616661 is an equidigital number, since it uses as much as digits as its factorization.

1734616661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 1734616661 is about 41648.7294043888. The cubic root of 1734616661 is about 1201.5296837186.

The spelling of 1734616661 in words is "one billion, seven hundred thirty-four million, six hundred sixteen thousand, six hundred sixty-one".