490873091 has 2 divisors, whose sum is σ = 490873092. Its totient is φ = 490873090.

The previous prime is 490873081. The next prime is 490873109. The reversal of 490873091 is 190378094.

It is a happy number.

Together with next prime (490873109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 490873091 - 2²⁶ = 423764227 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (490873081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245436545 + 245436546.

It is an arithmetic number, because the mean of its divisors is an integer number (245436546).

Almost surely, 2^490873091 is an apocalyptic number.

490873091 is a deficient number, since it is larger than the sum of its proper divisors (1).

490873091 is an equidigital number, since it uses as much as digits as its factorization.

490873091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 490873091 is about 22155.6559595964. The cubic root of 490873091 is about 788.8414846129.

The spelling of 490873091 in words is "four hundred ninety million, eight hundred seventy-three thousand, ninety-one".