89969111 has 2 divisors, whose sum is σ = 89969112. Its totient is φ = 89969110.

The previous prime is 89969093. The next prime is 89969137. The reversal of 89969111 is 11196998.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89969111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89969611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44984555 + 44984556.

It is an arithmetic number, because the mean of its divisors is an integer number (44984556).

Almost surely, 2^89969111 is an apocalyptic number.

89969111 is a deficient number, since it is larger than the sum of its proper divisors (1).

89969111 is an equidigital number, since it uses as much as digits as its factorization.

89969111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 44.

The square root of 89969111 is about 9485.2048475507. The cubic root of 89969111 is about 448.0891998592.

The spelling of 89969111 in words is "eighty-nine million, nine hundred sixty-nine thousand, one hundred eleven".