497473778 has 8 divisors (see below), whose sum is σ = 746788140. Its totient is φ = 248544400.

The previous prime is 497473759. The next prime is 497473793. The reversal of 497473778 is 877374794.

It can be written as a sum of positive squares in 2 ways, for example, as 364924609 + 132549169 = 19103^2 + 11513^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 92993 + ... + 98196.

Almost surely, 2^497473778 is an apocalyptic number.

497473778 is a deficient number, since it is larger than the sum of its proper divisors (249314362).

497473778 is a wasteful number, since it uses less digits than its factorization.

497473778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192492.

The product of its digits is 8297856, while the sum is 56.

The square root of 497473778 is about 22304.1202023303. The cubic root of 497473778 is about 792.3615592743.

The spelling of 497473778 in words is "four hundred ninety-seven million, four hundred seventy-three thousand, seven hundred seventy-eight".