89473939 has 2 divisors, whose sum is σ = 89473940. Its totient is φ = 89473938.

The previous prime is 89473921. The next prime is 89473949. The reversal of 89473939 is 93937498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89473939 - 2¹¹ = 89471891 is a prime.

It is not a weakly prime, because it can be changed into another prime (89473949) 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, 44736969 + 44736970.

It is an arithmetic number, because the mean of its divisors is an integer number (44736970).

Almost surely, 2^89473939 is an apocalyptic number.

89473939 is a deficient number, since it is larger than the sum of its proper divisors (1).

89473939 is an equidigital number, since it uses as much as digits as its factorization.

89473939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 52.

The square root of 89473939 is about 9459.0664972819. The cubic root of 89473939 is about 447.2656226138.

The spelling of 89473939 in words is "eighty-nine million, four hundred seventy-three thousand, nine hundred thirty-nine".