919490207 has 2 divisors, whose sum is σ = 919490208. Its totient is φ = 919490206.

The previous prime is 919490191. The next prime is 919490213. The reversal of 919490207 is 702094919.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (702094919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 919490207 - 2⁴ = 919490191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919490227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459745103 + 459745104.

It is an arithmetic number, because the mean of its divisors is an integer number (459745104).

Almost surely, 2^919490207 is an apocalyptic number.

919490207 is a deficient number, since it is larger than the sum of its proper divisors (1).

919490207 is an equidigital number, since it uses as much as digits as its factorization.

919490207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 919490207 is about 30323.0969229728. The cubic root of 919490207 is about 972.4091484706.

The spelling of 919490207 in words is "nine hundred nineteen million, four hundred ninety thousand, two hundred seven".