490771709 has 4 divisors (see below), whose sum is σ = 491890080. Its totient is φ = 489653340.

The previous prime is 490771693. The next prime is 490771739. The reversal of 490771709 is 907177094.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 907177094 = 2 ⋅453588547.

It is a cyclic number.

It is not a de Polignac number, because 490771709 - 2⁴ = 490771693 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 490771709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490771739) 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, 558527 + ... + 559404.

It is an arithmetic number, because the mean of its divisors is an integer number (122972520).

Almost surely, 2^490771709 is an apocalyptic number.

It is an amenable number.

490771709 is a deficient number, since it is larger than the sum of its proper divisors (1118371).

490771709 is a wasteful number, since it uses less digits than its factorization.

490771709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118370.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 490771709 is about 22153.3678929412. The cubic root of 490771709 is about 788.7871733355.

The spelling of 490771709 in words is "four hundred ninety million, seven hundred seventy-one thousand, seven hundred nine".