1427563447 has 4 divisors (see below), whose sum is σ = 1427639040. Its totient is φ = 1427487856.

The previous prime is 1427563441. The next prime is 1427563463. The reversal of 1427563447 is 7443657241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7443657241 = 131 ⋅56821811.

It is a cyclic number.

It is not a de Polignac number, because 1427563447 - 2²³ = 1419174839 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 (1427563441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17418 + ... + 56200.

It is an arithmetic number, because the mean of its divisors is an integer number (356909760).

Almost surely, 2^1427563447 is an apocalyptic number.

1427563447 is a deficient number, since it is larger than the sum of its proper divisors (75593).

1427563447 is an equidigital number, since it uses as much as digits as its factorization.

1427563447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75592.

The product of its digits is 564480, while the sum is 43.

The square root of 1427563447 is about 37783.1106051368. The cubic root of 1427563447 is about 1125.9829294599.

The spelling of 1427563447 in words is "one billion, four hundred twenty-seven million, five hundred sixty-three thousand, four hundred forty-seven".