85489450 has 12 divisors (see below), whose sum is σ = 159010470. Its totient is φ = 34195760.

The previous prime is 85489429. The next prime is 85489451. The reversal of 85489450 is 5498458.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76615009 + 8874441 = 8753^2 + 2979^2 .

It is a super-2 number, since 2×85489450² = 14616892122605000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85489397 and 85489406.

It is not an unprimeable number, because it can be changed into a prime (85489451) 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 5 ways as a sum of consecutive naturals, for example, 854845 + ... + 854944.

Almost surely, 2^85489450 is an apocalyptic number.

85489450 is a deficient number, since it is larger than the sum of its proper divisors (73521020).

85489450 is a wasteful number, since it uses less digits than its factorization.

85489450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709801 (or 1709796 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 85489450 is about 9246.0505081900. The cubic root of 85489450 is about 440.5252851837.

The spelling of 85489450 in words is "eighty-five million, four hundred eighty-nine thousand, four hundred fifty".