89111797 has 2 divisors, whose sum is σ = 89111798. Its totient is φ = 89111796.

The previous prime is 89111791. The next prime is 89111851. The reversal of 89111797 is 79711198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86843761 + 2268036 = 9319^2 + 1506^2 .

It is a cyclic number.

It is not a de Polignac number, because 89111797 - 2¹¹ = 89109749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89111791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44555898 + 44555899.

It is an arithmetic number, because the mean of its divisors is an integer number (44555899).

Almost surely, 2^89111797 is an apocalyptic number.

It is an amenable number.

89111797 is a deficient number, since it is larger than the sum of its proper divisors (1).

89111797 is an equidigital number, since it uses as much as digits as its factorization.

89111797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 43.

The square root of 89111797 is about 9439.9045016356. The cubic root of 89111797 is about 446.6613770691.

The spelling of 89111797 in words is "eighty-nine million, one hundred eleven thousand, seven hundred ninety-seven".