490320709 has 2 divisors, whose sum is σ = 490320710. Its totient is φ = 490320708.

The previous prime is 490320697. The next prime is 490320713. The reversal of 490320709 is 907023094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307476225 + 182844484 = 17535^2 + 13522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490320709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490320799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245160354 + 245160355.

It is an arithmetic number, because the mean of its divisors is an integer number (245160355).

Almost surely, 2^490320709 is an apocalyptic number.

It is an amenable number.

490320709 is a deficient number, since it is larger than the sum of its proper divisors (1).

490320709 is an equidigital number, since it uses as much as digits as its factorization.

490320709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 490320709 is about 22143.1865141402. The cubic root of 490320709 is about 788.5454777666.

The spelling of 490320709 in words is "four hundred ninety million, three hundred twenty thousand, seven hundred nine".