498172843 has 4 divisors (see below), whose sum is σ = 569340400. Its totient is φ = 427005288.

The previous prime is 498172841. The next prime is 498172853. The reversal of 498172843 is 348271894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 498172843 - 2¹ = 498172841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 498172793 and 498172802.

It is not an unprimeable number, because it can be changed into a prime (498172841) 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, 35583768 + ... + 35583781.

It is an arithmetic number, because the mean of its divisors is an integer number (142335100).

Almost surely, 2^498172843 is an apocalyptic number.

498172843 is a deficient number, since it is larger than the sum of its proper divisors (71167557).

498172843 is an equidigital number, since it uses as much as digits as its factorization.

498172843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71167556.

The product of its digits is 387072, while the sum is 46.

The square root of 498172843 is about 22319.7859084714. The cubic root of 498172843 is about 792.7325355966.

The spelling of 498172843 in words is "four hundred ninety-eight million, one hundred seventy-two thousand, eight hundred forty-three".