1563479798 has 16 divisors (see below), whose sum is σ = 2397000816. Its totient is φ = 764666400.

The previous prime is 1563479789. The next prime is 1563479843. The reversal of 1563479798 is 8979743651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29861 + ... + 63392.

It is an arithmetic number, because the mean of its divisors is an integer number (149812551).

Almost surely, 2^1563479798 is an apocalyptic number.

1563479798 is a deficient number, since it is larger than the sum of its proper divisors (833521018).

1563479798 is a wasteful number, since it uses less digits than its factorization.

1563479798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93439.

The product of its digits is 11430720, while the sum is 59.

The square root of 1563479798 is about 39540.8623831095. The cubic root of 1563479798 is about 1160.6397080931.

The spelling of 1563479798 in words is "one billion, five hundred sixty-three million, four hundred seventy-nine thousand, seven hundred ninety-eight".