85101889 has 8 divisors (see below), whose sum is σ = 86239080. Its totient is φ = 83968896.

The previous prime is 85101871. The next prime is 85101901. The reversal of 85101889 is 98810158.

It can be written as a sum of positive squares in 4 ways, for example, as 774400 + 84327489 = 880^2 + 9183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85101889 - 2⁷ = 85101761 is a prime.

It is a super-2 number, since 2×85101889² = 14484663022736642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85101389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68179 + ... + 69415.

It is an arithmetic number, because the mean of its divisors is an integer number (10779885).

Almost surely, 2^85101889 is an apocalyptic number.

85101889 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

85101889 is a deficient number, since it is larger than the sum of its proper divisors (1137191).

85101889 is a wasteful number, since it uses less digits than its factorization.

85101889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 85101889 is about 9225.0685092307. The cubic root of 85101889 is about 439.8585788618.

The spelling of 85101889 in words is "eighty-five million, one hundred one thousand, eight hundred eighty-nine".