561390927 has 8 divisors (see below), whose sum is σ = 754415616. Its totient is φ = 371313432.

The previous prime is 561390913. The next prime is 561390941. The reversal of 561390927 is 729093165.

561390927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (561390913) and next prime (561390941).

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

It is not a de Polignac number, because 561390927 - 2⁷ = 561390799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561390527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736353 + ... + 737114.

It is an arithmetic number, because the mean of its divisors is an integer number (94301952).

Almost surely, 2^561390927 is an apocalyptic number.

561390927 is a deficient number, since it is larger than the sum of its proper divisors (193024689).

561390927 is a wasteful number, since it uses less digits than its factorization.

561390927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473597.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 561390927 is about 23693.6896029301. The cubic root of 561390927 is about 824.9389251390.

The spelling of 561390927 in words is "five hundred sixty-one million, three hundred ninety thousand, nine hundred twenty-seven".