490421577 has 4 divisors (see below), whose sum is σ = 653895440. Its totient is φ = 326947716.

The previous prime is 490421573. The next prime is 490421587. The reversal of 490421577 is 775124094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 490421577 - 2² = 490421573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490421573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81736927 + ... + 81736932.

It is an arithmetic number, because the mean of its divisors is an integer number (163473860).

Almost surely, 2^490421577 is an apocalyptic number.

It is an amenable number.

490421577 is a deficient number, since it is larger than the sum of its proper divisors (163473863).

490421577 is a wasteful number, since it uses less digits than its factorization.

490421577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163473862.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 490421577 is about 22145.4640276514. The cubic root of 490421577 is about 788.5995468349.

The spelling of 490421577 in words is "four hundred ninety million, four hundred twenty-one thousand, five hundred seventy-seven".