89392942487 has 2 divisors, whose sum is σ = 89392942488. Its totient is φ = 89392942486.

The previous prime is 89392942481. The next prime is 89392942523. The reversal of 89392942487 is 78424929398.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89392942487 - 2³² = 85097975191 is a prime.

It is a super-3 number, since 3×89392942487³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89392942481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44696471243 + 44696471244.

It is an arithmetic number, because the mean of its divisors is an integer number (44696471244).

Almost surely, 2^89392942487 is an apocalyptic number.

89392942487 is a deficient number, since it is larger than the sum of its proper divisors (1).

89392942487 is an equidigital number, since it uses as much as digits as its factorization.

89392942487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 65.

The spelling of 89392942487 in words is "eighty-nine billion, three hundred ninety-two million, nine hundred forty-two thousand, four hundred eighty-seven".