89378057 has 2 divisors, whose sum is σ = 89378058. Its totient is φ = 89378056.

The previous prime is 89378039. The next prime is 89378099. The reversal of 89378057 is 75087398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88435216 + 942841 = 9404^2 + 971^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89378057 is a prime.

It is not a weakly prime, because it can be changed into another prime (89378017) 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, 44689028 + 44689029.

It is an arithmetic number, because the mean of its divisors is an integer number (44689029).

Almost surely, 2^89378057 is an apocalyptic number.

It is an amenable number.

89378057 is a deficient number, since it is larger than the sum of its proper divisors (1).

89378057 is an equidigital number, since it uses as much as digits as its factorization.

89378057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 89378057 is about 9453.9968796272. The cubic root of 89378057 is about 447.1057993523.

The spelling of 89378057 in words is "eighty-nine million, three hundred seventy-eight thousand, fifty-seven".