490078313 has 2 divisors, whose sum is σ = 490078314. Its totient is φ = 490078312.

The previous prime is 490078301. The next prime is 490078321. The reversal of 490078313 is 313870094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 486952489 + 3125824 = 22067^2 + 1768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490078313 is a prime.

It is not a weakly prime, because it can be changed into another prime (490078373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245039156 + 245039157.

It is an arithmetic number, because the mean of its divisors is an integer number (245039157).

Almost surely, 2^490078313 is an apocalyptic number.

It is an amenable number.

490078313 is a deficient number, since it is larger than the sum of its proper divisors (1).

490078313 is an equidigital number, since it uses as much as digits as its factorization.

490078313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 490078313 is about 22137.7124608664. The cubic root of 490078313 is about 788.4155140019.

The spelling of 490078313 in words is "four hundred ninety million, seventy-eight thousand, three hundred thirteen".