490969 has 2 divisors, whose sum is σ = 490970. Its totient is φ = 490968.

The previous prime is 490967. The next prime is 490991. The reversal of 490969 is 969094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455625 + 35344 = 675^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 490969 - 2¹ = 490967 is a prime.

It is a super-2 number, since 2×490969² = 482101117922, which contains 22 as substring.

Together with 490967, it forms a pair of twin primes.

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 (490967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245484 + 245485.

It is an arithmetic number, because the mean of its divisors is an integer number (245485).

2⁴⁹⁰⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

490969 is a deficient number, since it is larger than the sum of its proper divisors (1).

490969 is an equidigital number, since it uses as much as digits as its factorization.

490969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 490969 is about 700.6918010081. The cubic root of 490969 is about 78.8892857070.

The spelling of 490969 in words is "four hundred ninety thousand, nine hundred sixty-nine".