89355691 has 2 divisors, whose sum is σ = 89355692. Its totient is φ = 89355690.

The previous prime is 89355661. The next prime is 89355697. The reversal of 89355691 is 19655398.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89355691 - 2¹⁵ = 89322923 is a prime.

It is not a weakly prime, because it can be changed into another prime (89355697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44677845 + 44677846.

It is an arithmetic number, because the mean of its divisors is an integer number (44677846).

Almost surely, 2^89355691 is an apocalyptic number.

89355691 is a deficient number, since it is larger than the sum of its proper divisors (1).

89355691 is an equidigital number, since it uses as much as digits as its factorization.

89355691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 46.

The square root of 89355691 is about 9452.8139196749. The cubic root of 89355691 is about 447.0685015975.

The spelling of 89355691 in words is "eighty-nine million, three hundred fifty-five thousand, six hundred ninety-one".