490206877 has 2 divisors, whose sum is σ = 490206878. Its totient is φ = 490206876.

The previous prime is 490206841. The next prime is 490206887. The reversal of 490206877 is 778602094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315808441 + 174398436 = 17771^2 + 13206^2 .

It is a cyclic number.

It is not a de Polignac number, because 490206877 - 2²³ = 481818269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490206887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245103438 + 245103439.

It is an arithmetic number, because the mean of its divisors is an integer number (245103439).

Almost surely, 2^490206877 is an apocalyptic number.

It is an amenable number.

490206877 is a deficient number, since it is larger than the sum of its proper divisors (1).

490206877 is an equidigital number, since it uses as much as digits as its factorization.

490206877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 490206877 is about 22140.6160031739. The cubic root of 490206877 is about 788.4844505965.

The spelling of 490206877 in words is "four hundred ninety million, two hundred six thousand, eight hundred seventy-seven".