499845 has 16 divisors (see below), whose sum is σ = 817920. Its totient is φ = 260544.

The previous prime is 499819. The next prime is 499853. The reversal of 499845 is 548994.

It is not a de Polignac number, because 499845 - 2⁶ = 499781 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351 + ... + 1059.

It is an arithmetic number, because the mean of its divisors is an integer number (51120).

2⁴⁹⁹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

499845 is a deficient number, since it is larger than the sum of its proper divisors (318075).

499845 is a wasteful number, since it uses less digits than its factorization.

499845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764.

The product of its digits is 51840, while the sum is 39.

The square root of 499845 is about 706.9971711400. The cubic root of 499845 is about 79.3618501787.

The spelling of 499845 in words is "four hundred ninety-nine thousand, eight hundred forty-five".