494687787 has 8 divisors (see below), whose sum is σ = 719545920. Its totient is φ = 299810760.

The previous prime is 494687761. The next prime is 494687807. The reversal of 494687787 is 787786494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 494687787 - 2²² = 490493483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494687787.

It is not an unprimeable number, because it can be changed into a prime (494687747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495237 + ... + 7495302.

It is an arithmetic number, because the mean of its divisors is an integer number (89943240).

Almost surely, 2^494687787 is an apocalyptic number.

494687787 is a deficient number, since it is larger than the sum of its proper divisors (224858133).

494687787 is a wasteful number, since it uses less digits than its factorization.

494687787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14990553.

The product of its digits is 18966528, while the sum is 60.

The square root of 494687787 is about 22241.5778891696. The cubic root of 494687787 is about 790.8796413433.

The spelling of 494687787 in words is "four hundred ninety-four million, six hundred eighty-seven thousand, seven hundred eighty-seven".