561234705 has 8 divisors (see below), whose sum is σ = 897975552. Its totient is φ = 299325168.

The previous prime is 561234703. The next prime is 561234763. The reversal of 561234705 is 507432165.

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

It is not a de Polignac number, because 561234705 - 2¹ = 561234703 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (561234701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18707809 + ... + 18707838.

It is an arithmetic number, because the mean of its divisors is an integer number (112246944).

Almost surely, 2^561234705 is an apocalyptic number.

It is an amenable number.

561234705 is a deficient number, since it is larger than the sum of its proper divisors (336740847).

561234705 is a wasteful number, since it uses less digits than its factorization.

561234705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37415655.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 561234705 is about 23690.3926729803. The cubic root of 561234705 is about 824.8623976198.

The spelling of 561234705 in words is "five hundred sixty-one million, two hundred thirty-four thousand, seven hundred five".