845454 has 8 divisors (see below), whose sum is σ = 1690920. Its totient is φ = 281816.

The previous prime is 845447. The next prime is 845459. The reversal of 845454 is 454548.

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

845454 is an admirable number.

It is a super-2 number, since 2×845454² = 1429584932232, which contains 22 as substring.

845454 is a modest number, since divided by 5454 gives 84 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845454.

It is not an unprimeable number, because it can be changed into a prime (845459) by changing a digit.

845454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70449 + ... + 70460.

It is an arithmetic number, because the mean of its divisors is an integer number (211365).

2⁸⁴⁵⁴⁵⁴ is an apocalyptic number.

845454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845454 is a wasteful number, since it uses less digits than its factorization.

845454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140914.

The product of its digits is 12800, while the sum is 30.

The square root of 845454 is about 919.4857258272. The cubic root of 845454 is about 94.5576479813.

The spelling of 845454 in words is "eight hundred forty-five thousand, four hundred fifty-four".