916563601 has 2 divisors, whose sum is σ = 916563602. Its totient is φ = 916563600.

The previous prime is 916563539. The next prime is 916563611. The reversal of 916563601 is 106365619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 803779201 + 112784400 = 28351^2 + 10620^2 .

It is a cyclic number.

It is not a de Polignac number, because 916563601 - 2¹¹ = 916561553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (916563611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458281800 + 458281801.

It is an arithmetic number, because the mean of its divisors is an integer number (458281801).

Almost surely, 2^916563601 is an apocalyptic number.

It is an amenable number.

916563601 is a deficient number, since it is larger than the sum of its proper divisors (1).

916563601 is an equidigital number, since it uses as much as digits as its factorization.

916563601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 916563601 is about 30274.8014196625. The cubic root of 916563601 is about 971.3763721570.

The spelling of 916563601 in words is "nine hundred sixteen million, five hundred sixty-three thousand, six hundred one".