845493 has 8 divisors (see below), whose sum is σ = 1229856. Its totient is φ = 512400.

The previous prime is 845491. The next prime is 845531. The reversal of 845493 is 394548.

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

It is not a de Polignac number, because 845493 - 2¹ = 845491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 25621 = 845493 / (8 + 4 + 5 + 4 + 9 + 3).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845491) 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, 12778 + ... + 12843.

It is an arithmetic number, because the mean of its divisors is an integer number (153732).

2⁸⁴⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

845493 is a deficient number, since it is larger than the sum of its proper divisors (384363).

845493 is a wasteful number, since it uses less digits than its factorization.

845493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25635.

The product of its digits is 17280, while the sum is 33.

The square root of 845493 is about 919.5069330897. The cubic root of 845493 is about 94.5591019108.

The spelling of 845493 in words is "eight hundred forty-five thousand, four hundred ninety-three".