561089794 has 16 divisors (see below), whose sum is σ = 901883808. Its totient is φ = 260859712.

The previous prime is 561089701. The next prime is 561089803. The reversal of 561089794 is 497980165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96592 + ... + 102235.

It is an arithmetic number, because the mean of its divisors is an integer number (56367738).

Almost surely, 2^561089794 is an apocalyptic number.

561089794 is a deficient number, since it is larger than the sum of its proper divisors (340794014).

561089794 is a wasteful number, since it uses less digits than its factorization.

561089794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198929.

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

The square root of 561089794 is about 23687.3340416350. The cubic root of 561089794 is about 824.7913982542.

The spelling of 561089794 in words is "five hundred sixty-one million, eighty-nine thousand, seven hundred ninety-four".