490891523 has 8 divisors (see below), whose sum is σ = 492818688. Its totient is φ = 488969224.

The previous prime is 490891519. The next prime is 490891529. The reversal of 490891523 is 325198094.

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

It is a cyclic number.

It is not a de Polignac number, because 490891523 - 2² = 490891519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490891529) 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, 498890 + ... + 499872.

It is an arithmetic number, because the mean of its divisors is an integer number (61602336).

Almost surely, 2^490891523 is an apocalyptic number.

490891523 is a deficient number, since it is larger than the sum of its proper divisors (1927165).

490891523 is an equidigital number, since it uses as much as digits as its factorization.

490891523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 490891523 is about 22156.0719217103. The cubic root of 490891523 is about 788.8513580028.

The spelling of 490891523 in words is "four hundred ninety million, eight hundred ninety-one thousand, five hundred twenty-three".