663074497 has 4 divisors (see below), whose sum is σ = 663126016. Its totient is φ = 663022980.

The previous prime is 663074479. The next prime is 663074507. The reversal of 663074497 is 794470366.

663074497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 663074497 - 2¹⁹ = 662550209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663074417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11872 + ... + 38302.

It is an arithmetic number, because the mean of its divisors is an integer number (165781504).

Almost surely, 2^663074497 is an apocalyptic number.

It is an amenable number.

663074497 is a deficient number, since it is larger than the sum of its proper divisors (51519).

663074497 is a wasteful number, since it uses less digits than its factorization.

663074497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51518.

The product of its (nonzero) digits is 762048, while the sum is 46.

The square root of 663074497 is about 25750.2329504026. The cubic root of 663074497 is about 872.0086135452.

The spelling of 663074497 in words is "six hundred sixty-three million, seventy-four thousand, four hundred ninety-seven".