494391967 has 2 divisors, whose sum is σ = 494391968. Its totient is φ = 494391966.

The previous prime is 494391959. The next prime is 494392001. The reversal of 494391967 is 769193494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494391967 - 2³ = 494391959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494391917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247195983 + 247195984.

It is an arithmetic number, because the mean of its divisors is an integer number (247195984).

Almost surely, 2^494391967 is an apocalyptic number.

494391967 is a deficient number, since it is larger than the sum of its proper divisors (1).

494391967 is an equidigital number, since it uses as much as digits as its factorization.

494391967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 494391967 is about 22234.9267370055. The cubic root of 494391967 is about 790.7219629906.

The spelling of 494391967 in words is "four hundred ninety-four million, three hundred ninety-one thousand, nine hundred sixty-seven".