492778697 has 12 divisors (see below), whose sum is σ = 514330308. Its totient is φ = 472068000.

The previous prime is 492778687. The next prime is 492778717. The reversal of 492778697 is 796877294.

It can be written as a sum of positive squares in 2 ways, for example, as 476286976 + 16491721 = 21824^2 + 4061^2 .

It is not a de Polignac number, because 492778697 - 2⁶ = 492778633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492778687) 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 11 ways as a sum of consecutive naturals, for example, 94523 + ... + 99599.

It is an arithmetic number, because the mean of its divisors is an integer number (42860859).

Almost surely, 2^492778697 is an apocalyptic number.

It is an amenable number.

492778697 is a deficient number, since it is larger than the sum of its proper divisors (21551611).

492778697 is a wasteful number, since it uses less digits than its factorization.

492778697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240 (or 5209 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 59.

The square root of 492778697 is about 22198.6192588638. The cubic root of 492778697 is about 789.8609470582.

The spelling of 492778697 in words is "four hundred ninety-two million, seven hundred seventy-eight thousand, six hundred ninety-seven".