499641 has 8 divisors (see below), whose sum is σ = 689280. Its totient is φ = 321552.

The previous prime is 499637. The next prime is 499649. The reversal of 499641 is 146994.

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

It is not a de Polignac number, because 499641 - 2² = 499637 is a prime.

It is a super-2 number, since 2×499641² = 499282257762, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499649) 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, 2785 + ... + 2958.

It is an arithmetic number, because the mean of its divisors is an integer number (86160).

2⁴⁹⁹⁶⁴¹ is an apocalyptic number.

It is an amenable number.

499641 is a deficient number, since it is larger than the sum of its proper divisors (189639).

499641 is a wasteful number, since it uses less digits than its factorization.

499641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775.

The product of its digits is 7776, while the sum is 33.

The square root of 499641 is about 706.8528842694. The cubic root of 499641 is about 79.3510521510.

Multiplying 499641 by its sum of digits (33), we get a triangular number (16488153 = T₅₇₄₂).

The spelling of 499641 in words is "four hundred ninety-nine thousand, six hundred forty-one".