1405487663 has 2 divisors, whose sum is σ = 1405487664. Its totient is φ = 1405487662.

The previous prime is 1405487653. The next prime is 1405487687. The reversal of 1405487663 is 3667845041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1405487663 - 2⁶ = 1405487599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405487623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702743831 + 702743832.

It is an arithmetic number, because the mean of its divisors is an integer number (702743832).

Almost surely, 2^1405487663 is an apocalyptic number.

1405487663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405487663 is an equidigital number, since it uses as much as digits as its factorization.

1405487663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 1405487663 is about 37489.8341287342. The cubic root of 1405487663 is about 1120.1487002288.

The spelling of 1405487663 in words is "one billion, four hundred five million, four hundred eighty-seven thousand, six hundred sixty-three".