8603745961 has 2 divisors, whose sum is σ = 8603745962. Its totient is φ = 8603745960.

The previous prime is 8603745949. The next prime is 8603746007. The reversal of 8603745961 is 1695473068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7246265625 + 1357480336 = 85125^2 + 36844^2 .

It is a cyclic number.

It is not a de Polignac number, because 8603745961 - 2²⁷ = 8469528233 is a prime.

It is a super-2 number, since 2×8603745961² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8603745361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4301872980 + 4301872981.

It is an arithmetic number, because the mean of its divisors is an integer number (4301872981).

Almost surely, 2^8603745961 is an apocalyptic number.

It is an amenable number.

8603745961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8603745961 is an equidigital number, since it uses as much as digits as its factorization.

8603745961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 8603745961 is about 92756.3796242609. The cubic root of 8603745961 is about 2049.0970412397.

The spelling of 8603745961 in words is "eight billion, six hundred three million, seven hundred forty-five thousand, nine hundred sixty-one".