490769 has 2 divisors, whose sum is σ = 490770. Its totient is φ = 490768.

The previous prime is 490741. The next prime is 490771. The reversal of 490769 is 967094.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 483025 + 7744 = 695^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 490769 - 2¹⁶ = 425233 is a prime.

It is a super-2 number, since 2×490769² = 481708422722, which contains 22 as substring.

Together with 490771, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (490169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245384 + 245385.

It is an arithmetic number, because the mean of its divisors is an integer number (245385).

2⁴⁹⁰⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

490769 is a deficient number, since it is larger than the sum of its proper divisors (1).

490769 is an equidigital number, since it uses as much as digits as its factorization.

490769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 490769 is about 700.5490703727. The cubic root of 490769 is about 78.8785721996.

The spelling of 490769 in words is "four hundred ninety thousand, seven hundred sixty-nine".