561790948 has 12 divisors (see below), whose sum is σ = 985540780. Its totient is φ = 280207872.

The previous prime is 561790921. The next prime is 561790951. The reversal of 561790948 is 849097165.

It can be written as a sum of positive squares in 2 ways, for example, as 474891264 + 86899684 = 21792^2 + 9322^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170061 + ... + 173332.

Almost surely, 2^561790948 is an apocalyptic number.

It is an amenable number.

561790948 is a deficient number, since it is larger than the sum of its proper divisors (423749832).

561790948 is a wasteful number, since it uses less digits than its factorization.

561790948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343806 (or 343804 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 561790948 is about 23702.1296089613. The cubic root of 561790948 is about 825.1348162906.

The spelling of 561790948 in words is "five hundred sixty-one million, seven hundred ninety thousand, nine hundred forty-eight".