1493247663 has 16 divisors (see below), whose sum is σ = 2212943200. Its totient is φ = 995172480.

The previous prime is 1493247661. The next prime is 1493247667. The reversal of 1493247663 is 3667423941.

1493247663 is a `hidden beast` number, since 149 + 32 + 476 + 6 + 3 = 666.

It is not a de Polignac number, because 1493247663 - 2¹ = 1493247661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493247661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97893 + ... + 112113.

It is an arithmetic number, because the mean of its divisors is an integer number (138308950).

Almost surely, 2^1493247663 is an apocalyptic number.

1493247663 is a deficient number, since it is larger than the sum of its proper divisors (719695537).

1493247663 is a wasteful number, since it uses less digits than its factorization.

1493247663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119 (or 18113 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 1493247663 is about 38642.5628420269. The cubic root of 1493247663 is about 1142.9939928453.

The spelling of 1493247663 in words is "one billion, four hundred ninety-three million, two hundred forty-seven thousand, six hundred sixty-three".