1423662563 has 4 divisors (see below), whose sum is σ = 1440815208. Its totient is φ = 1406509920.

The previous prime is 1423662553. The next prime is 1423662587. The reversal of 1423662563 is 3652663241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1423662563 - 2¹⁶ = 1423597027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423662503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8576198 + ... + 8576363.

It is an arithmetic number, because the mean of its divisors is an integer number (360203802).

Almost surely, 2^1423662563 is an apocalyptic number.

1423662563 is a deficient number, since it is larger than the sum of its proper divisors (17152645).

1423662563 is an equidigital number, since it uses as much as digits as its factorization.

1423662563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17152644.

The product of its digits is 155520, while the sum is 38.

The square root of 1423662563 is about 37731.4532320185. The cubic root of 1423662563 is about 1124.9563935032.

The spelling of 1423662563 in words is "one billion, four hundred twenty-three million, six hundred sixty-two thousand, five hundred sixty-three".