89827961 has 2 divisors, whose sum is σ = 89827962. Its totient is φ = 89827960.

The previous prime is 89827943. The next prime is 89827963. The reversal of 89827961 is 16972898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81090025 + 8737936 = 9005^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 89827961 - 2¹⁴ = 89811577 is a prime.

Together with 89827963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89827963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44913980 + 44913981.

It is an arithmetic number, because the mean of its divisors is an integer number (44913981).

Almost surely, 2^89827961 is an apocalyptic number.

It is an amenable number.

89827961 is a deficient number, since it is larger than the sum of its proper divisors (1).

89827961 is an equidigital number, since it uses as much as digits as its factorization.

89827961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 50.

The square root of 89827961 is about 9477.7613918056. The cubic root of 89827961 is about 447.8547457056.

The spelling of 89827961 in words is "eighty-nine million, eight hundred twenty-seven thousand, nine hundred sixty-one".