561090694 has 8 divisors (see below), whose sum is σ = 841800960. Its totient is φ = 280490376.

The previous prime is 561090679. The next prime is 561090709. The reversal of 561090694 is 496090165.

It is an interprime number because it is at equal distance from previous prime (561090679) and next prime (561090709).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13254 + ... + 36025.

It is an arithmetic number, because the mean of its divisors is an integer number (105225120).

Almost surely, 2^561090694 is an apocalyptic number.

561090694 is a deficient number, since it is larger than the sum of its proper divisors (280710266).

561090694 is a wasteful number, since it uses less digits than its factorization.

561090694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54974.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 561090694 is about 23687.3530391220. The cubic root of 561090694 is about 824.7918392483.

The spelling of 561090694 in words is "five hundred sixty-one million, ninety thousand, six hundred ninety-four".