89830620287 has 2 divisors, whose sum is σ = 89830620288. Its totient is φ = 89830620286.

The previous prime is 89830620263. The next prime is 89830620323. The reversal of 89830620287 is 78202603898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89830620287 - 2⁸ = 89830620031 is a prime.

It is a super-2 number, since 2×89830620287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89830680287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44915310143 + 44915310144.

It is an arithmetic number, because the mean of its divisors is an integer number (44915310144).

Almost surely, 2^89830620287 is an apocalyptic number.

89830620287 is a deficient number, since it is larger than the sum of its proper divisors (1).

89830620287 is an equidigital number, since it uses as much as digits as its factorization.

89830620287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 89830620287 in words is "eighty-nine billion, eight hundred thirty million, six hundred twenty thousand, two hundred eighty-seven".