89166805 has 16 divisors (see below), whose sum is σ = 131693184. Its totient is φ = 56439360.

The previous prime is 89166787. The next prime is 89166823. The reversal of 89166805 is 50866198.

It is an interprime number because it is at equal distance from previous prime (89166787) and next prime (89166823).

It is not a de Polignac number, because 89166805 - 2⁹ = 89166293 is a prime.

It is a super-2 number, since 2×89166805² = 15901438227816050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97531 + ... + 98440.

It is an arithmetic number, because the mean of its divisors is an integer number (8230824).

Almost surely, 2^89166805 is an apocalyptic number.

It is an amenable number.

89166805 is a deficient number, since it is larger than the sum of its proper divisors (42526379).

89166805 is a wasteful number, since it uses less digits than its factorization.

89166805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195996.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 89166805 is about 9442.8176409375. The cubic root of 89166805 is about 446.7532649971.

The spelling of 89166805 in words is "eighty-nine million, one hundred sixty-six thousand, eight hundred five".