89280973087 has 2 divisors, whose sum is σ = 89280973088. Its totient is φ = 89280973086.

The previous prime is 89280973063. The next prime is 89280973109. The reversal of 89280973087 is 78037908298.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89280973087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89280973687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44640486543 + 44640486544.

It is an arithmetic number, because the mean of its divisors is an integer number (44640486544).

Almost surely, 2^89280973087 is an apocalyptic number.

89280973087 is a deficient number, since it is larger than the sum of its proper divisors (1).

89280973087 is an equidigital number, since it uses as much as digits as its factorization.

89280973087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 89280973087 in words is "eighty-nine billion, two hundred eighty million, nine hundred seventy-three thousand, eighty-seven".