490878611 has 2 divisors, whose sum is σ = 490878612. Its totient is φ = 490878610.

The previous prime is 490878607. The next prime is 490878617. The reversal of 490878611 is 116878094.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490878611 - 2² = 490878607 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (490878617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245439305 + 245439306.

It is an arithmetic number, because the mean of its divisors is an integer number (245439306).

Almost surely, 2^490878611 is an apocalyptic number.

490878611 is a deficient number, since it is larger than the sum of its proper divisors (1).

490878611 is an equidigital number, since it uses as much as digits as its factorization.

490878611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 490878611 is about 22155.7805324028. The cubic root of 490878611 is about 788.8444415134.

The spelling of 490878611 in words is "four hundred ninety million, eight hundred seventy-eight thousand, six hundred eleven".