916734661 has 2 divisors, whose sum is σ = 916734662. Its totient is φ = 916734660.

The previous prime is 916734659. The next prime is 916734691. The reversal of 916734661 is 166437619.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886550625 + 30184036 = 29775^2 + 5494^2 .

It is a cyclic number.

It is not a de Polignac number, because 916734661 - 2¹ = 916734659 is a prime.

Together with 916734659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916734601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458367330 + 458367331.

It is an arithmetic number, because the mean of its divisors is an integer number (458367331).

Almost surely, 2^916734661 is an apocalyptic number.

It is an amenable number.

916734661 is a deficient number, since it is larger than the sum of its proper divisors (1).

916734661 is an equidigital number, since it uses as much as digits as its factorization.

916734661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 916734661 is about 30277.6264096114. The cubic root of 916734661 is about 971.4367983351.

The spelling of 916734661 in words is "nine hundred sixteen million, seven hundred thirty-four thousand, six hundred sixty-one".