89171761 has 16 divisors (see below), whose sum is σ = 105114240. Its totient is φ = 74056320.

The previous prime is 89171699. The next prime is 89171773. The reversal of 89171761 is 16717198.

It is a cyclic number.

It is not a de Polignac number, because 89171761 - 2¹¹ = 89169713 is a prime.

It is a super-2 number, since 2×89171761² = 15903205919682242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89171791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44070 + ... + 46048.

It is an arithmetic number, because the mean of its divisors is an integer number (6569640).

Almost surely, 2^89171761 is an apocalyptic number.

It is an amenable number.

89171761 is a deficient number, since it is larger than the sum of its proper divisors (15942479).

89171761 is a wasteful number, since it uses less digits than its factorization.

89171761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184.

The product of its digits is 21168, while the sum is 40.

The square root of 89171761 is about 9443.0800589638. The cubic root of 89171761 is about 446.7615418746.

The spelling of 89171761 in words is "eighty-nine million, one hundred seventy-one thousand, seven hundred sixty-one".