1247803463 has 2 divisors, whose sum is σ = 1247803464. Its totient is φ = 1247803462.

The previous prime is 1247803457. The next prime is 1247803477. The reversal of 1247803463 is 3643087421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1247803463 - 2¹⁸ = 1247541319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1247833463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623901731 + 623901732.

It is an arithmetic number, because the mean of its divisors is an integer number (623901732).

Almost surely, 2^1247803463 is an apocalyptic number.

1247803463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247803463 is an equidigital number, since it uses as much as digits as its factorization.

1247803463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1247803463 is about 35324.2616766437. The cubic root of 1247803463 is about 1076.5860023320.

The spelling of 1247803463 in words is "one billion, two hundred forty-seven million, eight hundred three thousand, four hundred sixty-three".