494697787 has 2 divisors, whose sum is σ = 494697788. Its totient is φ = 494697786.

The previous prime is 494697761. The next prime is 494697817. The reversal of 494697787 is 787796494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494697787 - 2¹¹ = 494695739 is a prime.

It is not a weakly prime, because it can be changed into another prime (494697887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247348893 + 247348894.

It is an arithmetic number, because the mean of its divisors is an integer number (247348894).

Almost surely, 2^494697787 is an apocalyptic number.

494697787 is a deficient number, since it is larger than the sum of its proper divisors (1).

494697787 is an equidigital number, since it uses as much as digits as its factorization.

494697787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21337344, while the sum is 61.

The square root of 494697787 is about 22241.8026922280. The cubic root of 494697787 is about 790.8849704575.

The spelling of 494697787 in words is "four hundred ninety-four million, six hundred ninety-seven thousand, seven hundred eighty-seven".