89623873 has 2 divisors, whose sum is σ = 89623874. Its totient is φ = 89623872.

The previous prime is 89623871. The next prime is 89623889. The reversal of 89623873 is 37832698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 2537649 = 9332^2 + 1593^2 .

It is a cyclic number.

It is not a de Polignac number, because 89623873 - 2¹ = 89623871 is a prime.

It is a super-2 number, since 2×89623873² = 16064877223040258, which contains 22 as substring.

Together with 89623871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89623871) 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, 44811936 + 44811937.

It is an arithmetic number, because the mean of its divisors is an integer number (44811937).

Almost surely, 2^89623873 is an apocalyptic number.

It is an amenable number.

89623873 is a deficient number, since it is larger than the sum of its proper divisors (1).

89623873 is an equidigital number, since it uses as much as digits as its factorization.

89623873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 89623873 is about 9466.9885919441. The cubic root of 89623873 is about 447.5153150611.

The spelling of 89623873 in words is "eighty-nine million, six hundred twenty-three thousand, eight hundred seventy-three".