1563473 has 4 divisors (see below), whose sum is σ = 1655460. Its totient is φ = 1471488.

The previous prime is 1563469. The next prime is 1563481. The reversal of 1563473 is 3743651.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1117249 + 446224 = 1057^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563473 - 2² = 1563469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1563413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45968 + ... + 46001.

It is an arithmetic number, because the mean of its divisors is an integer number (413865).

2^1563473 is an apocalyptic number.

It is an amenable number.

1563473 is a deficient number, since it is larger than the sum of its proper divisors (91987).

1563473 is an equidigital number, since it uses as much as digits as its factorization.

1563473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91986.

The product of its digits is 7560, while the sum is 29.

The square root of 1563473 is about 1250.3891394282. The cubic root of 1563473 is about 116.0638025939.

The spelling of 1563473 in words is "one million, five hundred sixty-three thousand, four hundred seventy-three".