900499 has 4 divisors (see below), whose sum is σ = 902440. Its totient is φ = 898560.

The previous prime is 900491. The next prime is 900511. The reversal of 900499 is 994009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994009 = 997².

It is a cyclic number.

It is not a de Polignac number, because 900499 - 2³ = 900491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 900499.

It is not an unprimeable number, because it can be changed into a prime (900491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184 + ... + 1354.

It is an arithmetic number, because the mean of its divisors is an integer number (225610).

2⁹⁰⁰⁴⁹⁹ is an apocalyptic number.

900499 is a deficient number, since it is larger than the sum of its proper divisors (1941).

900499 is a wasteful number, since it uses less digits than its factorization.

900499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 900499 is about 948.9462576985. The cubic root of 900499 is about 96.5667788380.

The spelling of 900499 in words is "nine hundred thousand, four hundred ninety-nine".