8985292661 has 2 divisors, whose sum is σ = 8985292662. Its totient is φ = 8985292660.

The previous prime is 8985292621. The next prime is 8985292669. The reversal of 8985292661 is 1662925898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5521381636 + 3463911025 = 74306^2 + 58855^2 .

It is a cyclic number.

It is not a de Polignac number, because 8985292661 - 2⁶ = 8985292597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8985292597 and 8985292606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8985292669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4492646330 + 4492646331.

It is an arithmetic number, because the mean of its divisors is an integer number (4492646331).

Almost surely, 2^8985292661 is an apocalyptic number.

It is an amenable number.

8985292661 is a deficient number, since it is larger than the sum of its proper divisors (1).

8985292661 is an equidigital number, since it uses as much as digits as its factorization.

8985292661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 56.

The square root of 8985292661 is about 94790.7836290006. The cubic root of 8985292661 is about 2078.9501498182.

The spelling of 8985292661 in words is "eight billion, nine hundred eighty-five million, two hundred ninety-two thousand, six hundred sixty-one".