89892977287 has 2 divisors, whose sum is σ = 89892977288. Its totient is φ = 89892977286.

The previous prime is 89892977219. The next prime is 89892977297. The reversal of 89892977287 is 78277929898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89892977287 - 2⁷ = 89892977159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89892977297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44946488643 + 44946488644.

It is an arithmetic number, because the mean of its divisors is an integer number (44946488644).

Almost surely, 2^89892977287 is an apocalyptic number.

89892977287 is a deficient number, since it is larger than the sum of its proper divisors (1).

89892977287 is an equidigital number, since it uses as much as digits as its factorization.

89892977287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512096256, while the sum is 76.

The spelling of 89892977287 in words is "eighty-nine billion, eight hundred ninety-two million, nine hundred seventy-seven thousand, two hundred eighty-seven".