490902823 has 4 divisors (see below), whose sum is σ = 512246448. Its totient is φ = 469559200.

The previous prime is 490902821. The next prime is 490902871. The reversal of 490902823 is 328209094.

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 490902823 - 2¹ = 490902821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490902821) 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, 10671778 + ... + 10671823.

It is an arithmetic number, because the mean of its divisors is an integer number (128061612).

Almost surely, 2^490902823 is an apocalyptic number.

490902823 is a deficient number, since it is larger than the sum of its proper divisors (21343625).

490902823 is a wasteful number, since it uses less digits than its factorization.

490902823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21343624.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 490902823 is about 22156.3269293446. The cubic root of 490902823 is about 788.8574109028.

The spelling of 490902823 in words is "four hundred ninety million, nine hundred two thousand, eight hundred twenty-three".