663367457 has 8 divisors (see below), whose sum is σ = 675492384. Its totient is φ = 651341088.

The previous prime is 663367423. The next prime is 663367459. The reversal of 663367457 is 754763366.

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

It is a cyclic number.

It is not a de Polignac number, because 663367457 - 2²² = 659173153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663367459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10988 + ... + 38045.

It is an arithmetic number, because the mean of its divisors is an integer number (84436548).

Almost surely, 2^663367457 is an apocalyptic number.

It is an amenable number.

663367457 is a deficient number, since it is larger than the sum of its proper divisors (12124927).

663367457 is a wasteful number, since it uses less digits than its factorization.

663367457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49279.

The product of its digits is 1905120, while the sum is 47.

The square root of 663367457 is about 25755.9208144458. The cubic root of 663367457 is about 872.1370184383.

The spelling of 663367457 in words is "six hundred sixty-three million, three hundred sixty-seven thousand, four hundred fifty-seven".