89876543213 has 2 divisors, whose sum is σ = 89876543214. Its totient is φ = 89876543212.

The previous prime is 89876543209. The next prime is 89876543227. The reversal of 89876543213 is 31234567898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45489638089 + 44386905124 = 213283^2 + 210682^2 .

It is a cyclic number.

It is not a de Polignac number, because 89876543213 - 2² = 89876543209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89876543233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44938271606 + 44938271607.

It is an arithmetic number, because the mean of its divisors is an integer number (44938271607).

Almost surely, 2^89876543213 is an apocalyptic number.

It is an amenable number.

89876543213 is a deficient number, since it is larger than the sum of its proper divisors (1).

89876543213 is an equidigital number, since it uses as much as digits as its factorization.

89876543213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 89876543213 in words is "eighty-nine billion, eight hundred seventy-six million, five hundred forty-three thousand, two hundred thirteen".