985889546 has 4 divisors (see below), whose sum is σ = 1478834322. Its totient is φ = 492944772.

The previous prime is 985889543. The next prime is 985889617. The reversal of 985889546 is 645988589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645988589 = 157 ⋅4114577.

It can be written as a sum of positive squares in only one way, i.e., 696379321 + 289510225 = 26389^2 + 17015^2 .

It is a super-2 number, since 2×985889546² = 1943956393824172232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (985889543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246472385 + ... + 246472388.

Almost surely, 2^985889546 is an apocalyptic number.

985889546 is a deficient number, since it is larger than the sum of its proper divisors (492944776).

985889546 is a wasteful number, since it uses less digits than its factorization.

985889546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492944775.

The product of its digits is 24883200, while the sum is 62.

The square root of 985889546 is about 31398.8781009768. The cubic root of 985889546 is about 995.2742174934.

The spelling of 985889546 in words is "nine hundred eighty-five million, eight hundred eighty-nine thousand, five hundred forty-six".