545898 has 16 divisors (see below), whose sum is σ = 1121760. Its totient is φ = 176976.

The previous prime is 545893. The next prime is 545899. The reversal of 545898 is 898545.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (545893) by changing a digit.

545898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (70110).

2⁵⁴⁵⁸⁹⁸ is an apocalyptic number.

545898 is an abundant number, since it is smaller than the sum of its proper divisors (575862).

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

545898 is a wasteful number, since it uses less digits than its factorization.

545898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501.

The product of its digits is 57600, while the sum is 39.

The square root of 545898 is about 738.8491050275. The cubic root of 545898 is about 81.7279303367.

The spelling of 545898 in words is "five hundred forty-five thousand, eight hundred ninety-eight".