986573 has 4 divisors (see below), whose sum is σ = 1127520. Its totient is φ = 845628.

The previous prime is 986569. The next prime is 986581. The reversal of 986573 is 375689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 375689 = 31 ⋅12119.

It is not a de Polignac number, because 986573 - 2² = 986569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70463 + ... + 70476.

It is an arithmetic number, because the mean of its divisors is an integer number (281880).

2⁹⁸⁶⁵⁷³ is an apocalyptic number.

It is an amenable number.

986573 is a deficient number, since it is larger than the sum of its proper divisors (140947).

986573 is a wasteful number, since it uses less digits than its factorization.

986573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140946.

The product of its digits is 45360, while the sum is 38.

The square root of 986573 is about 993.2638118848. The cubic root of 986573 is about 99.5504150966.

The spelling of 986573 in words is "nine hundred eighty-six thousand, five hundred seventy-three".