89892169 has 2 divisors, whose sum is σ = 89892170. Its totient is φ = 89892168.

The previous prime is 89892167. The next prime is 89892221. The reversal of 89892169 is 96129898.

It is an a-pointer prime, because the next prime (89892221) can be obtained adding 89892169 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82537225 + 7354944 = 9085^2 + 2712^2 .

It is a cyclic number.

It is not a de Polignac number, because 89892169 - 2¹ = 89892167 is a prime.

It is a super-2 number, since 2×89892169² = 16161204095049122, which contains 22 as substring.

Together with 89892167, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (89892161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44946084 + 44946085.

It is an arithmetic number, because the mean of its divisors is an integer number (44946085).

Almost surely, 2^89892169 is an apocalyptic number.

It is an amenable number.

89892169 is a deficient number, since it is larger than the sum of its proper divisors (1).

89892169 is an equidigital number, since it uses as much as digits as its factorization.

89892169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 52.

The square root of 89892169 is about 9481.1480844885. The cubic root of 89892169 is about 447.9614274427.

The spelling of 89892169 in words is "eighty-nine million, eight hundred ninety-two thousand, one hundred sixty-nine".