85054869 has 12 divisors (see below), whose sum is σ = 125854092. Its totient is φ = 55320000.

The previous prime is 85054861. The next prime is 85054889. The reversal of 85054869 is 96845058.

It can be written as a sum of positive squares in 2 ways, for example, as 22043025 + 63011844 = 4695^2 + 7938^2 .

It is not a de Polignac number, because 85054869 - 2³ = 85054861 is a prime.

It is a super-2 number, since 2×85054869² = 14468661481214322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85054861) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 114882 + ... + 115619.

It is an arithmetic number, because the mean of its divisors is an integer number (10487841).

Almost surely, 2^85054869 is an apocalyptic number.

It is an amenable number.

85054869 is a deficient number, since it is larger than the sum of its proper divisors (40799223).

85054869 is a wasteful number, since it uses less digits than its factorization.

85054869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230548 (or 230545 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 85054869 is about 9222.5196665553. The cubic root of 85054869 is about 439.7775545710. Note that the first 3 decimals are identical.

The spelling of 85054869 in words is "eighty-five million, fifty-four thousand, eight hundred sixty-nine".