89740087189 has 2 divisors, whose sum is σ = 89740087190. Its totient is φ = 89740087188.

The previous prime is 89740087159. The next prime is 89740087219. The reversal of 89740087189 is 98178004798.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (89740087159) and next prime (89740087219).

It can be written as a sum of positive squares in only one way, i.e., 75545271025 + 14194816164 = 274855^2 + 119142^2 .

It is a cyclic number.

It is not a de Polignac number, because 89740087189 - 2²⁷ = 89605869461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89740087159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44870043594 + 44870043595.

It is an arithmetic number, because the mean of its divisors is an integer number (44870043595).

Almost surely, 2^89740087189 is an apocalyptic number.

It is an amenable number.

89740087189 is a deficient number, since it is larger than the sum of its proper divisors (1).

89740087189 is an equidigital number, since it uses as much as digits as its factorization.

89740087189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 89740087189 in words is "eighty-nine billion, seven hundred forty million, eighty-seven thousand, one hundred eighty-nine".